2019 in archosaur paleontology

• A study on the bone histology of Coahomasuchus chathamensis, and on its implications for inferring ontogeny and growth strategy of this species, is published by Hoffman, Heckert & Zanno (2019).{{cite journal |author1=Devin K. Hoffman |author2=Andrew B. Heckert |author3=Lindsay E. Zanno |year=2019 |title=Disparate growth strategies within Aetosauria: Novel histologic data from the aetosaur Coahomasuchus chathamensis |journal=The Anatomical Record |volume=302 |issue=9 |pages=1504–1515 |doi=10.1002/ar.24019 |pmid=30408334 |s2cid=53239179 |doi-access=free }}
• Tolchard et al. (2019) revise fragmentary archosaurian remains from the latest Triassic lower Elliot Formation (South Africa), interpreting them as fossils of at least two distinct taxa of "rauisuchians", thus representing the southernmost palaeolatitudes that these animals are known to have occurred, their first definitive remains from southern Africa, and some of the most recent records of members of this grade.{{cite journal |author1=Frederick Tolchard |author2=Sterling J. Nesbitt |author3=Julia B. Desojo |author4=Pia Viglietti |author5=Richard J. Butler |author6=Jonah N. Choiniere |year=2019 |title="Rauisuchian" material from the Lower Elliot Formation of South Africa: implications for Late Triassic biogeography and biostratigraphy |journal=Journal of African Earth Sciences |volume=160 |pages=Article 103610 |doi=10.1016/j.jafrearsci.2019.103610 |bibcode=2019JAfES.16003610T |s2cid=202902771 |url=http://pure-oai.bham.ac.uk/ws/files/74379812/Tolchard_et_al._in_press.pdf }}
• A study on the anatomy of the skeleton of Poposaurus gracilis is published online by Schachner et al. (2019).{{cite journal |author1=Emma R. Schachner |author2=Randall B. Irmis |author3=Adam K. Huttenlocker |author4=Kent Sanders |author5=Robert L. Cieri |author6=Marylin Fox |author7=Sterling J. Nesbitt |year=2019 |title=Osteology of the Late Triassic bipedal archosaur Poposaurus gracilis (Archosauria: Pseudosuchia) from western North America |journal=The Anatomical Record |volume=303 |issue=4 |pages=874–917 |doi=10.1002/ar.24298 |pmid=31814308 |s2cid=208954675 |doi-access=free }}
• A study on the age of sandstones of the Badong Formation preserving fossils of Lotosaurus adentus is published by Wang et al. (2019).{{cite journal |author1=Jun Wang |author2=Rui Pei |author3=Jianye Chen |author4=Zhenzhu Zhou |author5=Chongqin Feng |author6=Su-Chin Chang |year=2019 |title=New age constraints for the Middle Triassic archosaur Lotosaurus: Implications for basal archosaurian appearance and radiation in South China |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=521 |pages=30–41 |doi=10.1016/j.palaeo.2019.02.008 |bibcode=2019PPP...521...30W |s2cid=134668592 }}
• Description of the anatomy of the skull of a new specimen of Prestosuchus chiniquensis from the Dinodontosaurus Assemblage Zone of the Pinheiros-Chiniquá Sequence, Santa Maria Super sequence (Brazil) is published by Mastrantonio et al. (2019), who also present the first description of a rauisuchian cranial endocast.{{cite journal |author1=Bianca Martins Mastrantonio |author2=María Belén Von Baczko |author3=Julia Brenda Desojo |author4=Cesar L. Schultz |year=2019 |title=The skull anatomy and cranial endocast of the pseudosuchid archosaur Prestosuchus chiniquensis from the Triassic of Brazil |journal=Acta Palaeontologica Polonica |volume=64 |issue=1 |pages=171–198 |doi=10.4202/app.00527.2018 |doi-access=free |hdl=11336/117309 |hdl-access=free }}
• A study on habitat shifts during the evolutionary history of Crocodylomorpha is published by Wilberg, Turner & Brochu (2019).{{cite journal |author1=Eric W. Wilberg |author2=Alan H. Turner |author3=Christopher A. Brochu |year=2019 |title=Evolutionary structure and timing of major habitat shifts in Crocodylomorpha |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 514 |doi=10.1038/s41598-018-36795-1 |pmid=30679529 |pmc=6346023 |bibcode=2019NatSR...9..514W }}
• A study on patterns of body size evolution of crocodylomorphs is published by Godoy et al. (2019).{{Cite journal|author1=Pedro L. Godoy |author2=Roger B. J. Benson |author3=Mario Bronzati |author4=Richard J. Butler |year=2019 |title=The multi-peak adaptive landscape of crocodylomorph body size evolution |journal=BMC Evolutionary Biology |volume=19 |issue=1 |pages=Article number 167 |doi=10.1186/s12862-019-1466-4 |pmid=31390981 |pmc=6686447 |doi-access=free |bibcode=2019BMCEE..19..167G }}
• A study on the quality of the fossil record of non-marine crocodylomorphs is published by Mannion et al. (2019).{{Cite journal|author1=Philip D. Mannion |author2=Alfio Alessandro Chiarenza |author3=Pedro L. Godoy |author4=Yung Nam Cheah |year=2019 |title=Spatiotemporal sampling patterns in the 230 million year fossil record of terrestrial crocodylomorphs and their impact on diversity |journal=Palaeontology |volume=62 |issue=4 |pages=615–637 |doi=10.1111/pala.12419 |bibcode=2019Palgy..62..615M |hdl=10044/1/66724 |s2cid=135111640 |url=https://discovery.ucl.ac.uk/id/eprint/10068079/ |hdl-access=free }}
• A study on the evolution of skull shape in crocodylomorphs is published online by Godoy (2019).{{cite journal |author=Pedro L. Godoy |year=2020 |title=Crocodylomorph cranial shape evolution and its relationship with body size and ecology |journal=Journal of Evolutionary Biology |volume=33 |issue=1 |pages=4–21 |doi=10.1111/jeb.13540 |pmid=31566848 |doi-access=free }}
• A study on the diversity of feeding ecologies of Mesozoic crocodyliforms is published by Melstrom & Irmis (2019).{{Cite journal|author1=Keegan M. Melstrom |author2=Randall B. Irmis |year=2019 |title=Repeated evolution of herbivorous crocodyliforms during the age of dinosaurs |journal=Current Biology |volume=29 |issue=14 |pages=2389–2395.e3 |doi=10.1016/j.cub.2019.05.076 |pmid=31257139 |s2cid=195699188 |doi-access=free |bibcode=2019CBio...29E2389M }}
• A study on patterns of crocodyliform snout shape, on their inferred diet and on the relationship between form and function of crocodyliform skull shape throughout the evolutionary history of this group is published online by Drumheller & Wilberg (2019).{{cite journal |author1=Stephanie K. Drumheller |author2=Eric W. Wilberg |year=2020 |title=A synthetic approach for assessing the interplay of form and function in the crocodyliform snout |journal=Zoological Journal of the Linnean Society |volume=188 |issue=2 |pages=507–521 |doi=10.1093/zoolinnean/zlz081 |doi-access=free }}
• New fossil material (an isolated left dentary) of Orthosuchus stormbergi is described from the Upper Elliot Formation (South Africa) by Dollman, Viglietti & Choiniere (2019), who also examine the stratigraphic positions of all valid crocodylomorph specimens from the main Karoo Basin.{{cite journal |author1=K. N. Dollman |author2=P. A. Viglietti |author3=J. N. Choiniere |year=2019 |title=A new specimen of Orthosuchus stormbergi (Nash 1968) and a review of the distribution of Southern African Lower Jurassic crocodylomorphs |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=5 |pages=653–664 |doi=10.1080/08912963.2017.1387110 |bibcode=2019HBio...31..653D |s2cid=134134524 }}
• Teleosaurid and metriorhynchid teeth are described from, respectively, the Middle Jurassic (Aalenian) and Upper Jurassic (Tithonian) of Slovakia by Čerňanský et al. (2019), representing the first record of members of both families from the country.{{Cite journal|author1=Andrej Čerňanský |author2=Ján Schlögl |author3=Tomáš Mlynský |author4=Štefan Józsa |year=2019 |title=First evidence of the Jurassic thalattosuchian (both teleosaurid and metriorhynchid) crocodylomorphs from Slovakia (Western Carpathians) |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=8 |pages=1008–1015 |doi=10.1080/08912963.2017.1414212 |bibcode=2019HBio...31.1008C |s2cid=90544444 }}
• Partial skeleton of a teleosauroid crocodylomorph, representing the most recent record of a definitive non-machimosaurin teleosauroid in Africa reported so far, is described from the Callovian of Tunisia by Dridi & Johnson (2019).{{Cite journal|author1=Jihed Dridi |author2=Michela M. Johnson |year=2019 |title=On a longirostrine crocodylomorph (Thalattosuchia) from the Middle Jurassic of Tunisia |journal=Geobios |volume=56 |pages=95–106 |doi=10.1016/j.geobios.2019.07.006 |bibcode=2019Geobi..56...95D |s2cid=199804083 }}
• Fossils of a member of Teleosauroidea with an estimated body length of 9.6 m, representing the most recent definitive record of Teleosauroidea reported so far, are described from the Lower Cretaceous (upper Barremian) Paja Formation (Colombia) by Cortes et al. (2019).{{cite journal |author1=Dirley Cortes |author2=Hans C.E. Larsson |author3=Erin E. Maxwell |author4=Mary L. Parra Ruge |author5=Pedro Patarroyo |author6=Jeffrey A. Wilson |year=2019 |title=An Early Cretaceous teleosaurid (Crocodylomorpha: Thalattosuchia) from Colombia |journal=Ameghiniana |volume=56 |issue=5 |pages=365–379 |doi=10.5710/AMGH.26.09.2019.3269 |s2cid=210110716 }}
• Redescription of the holotype specimens of Mystriosaurus laurillardi and "Steneosaurus" brevior and a study on the taxonomic validity and phylogenetic relationships of these species is published by Sachs et al. (2019).{{Cite journal|author1=Sven Sachs |author2=Michela M. Johnson |author3=Mark T. Young |author4=Pascal Abel |year=2019 |title=The mystery of Mystriosaurus: Redescribing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus brevior |journal=Acta Palaeontologica Polonica |volume=64 |issue=3 |pages=565–579 |doi=10.4202/app.00557.2018 |doi-access=free |hdl=20.500.11820/fa362d74-7f12-4513-b1f9-cc4eadbb0d67 |hdl-access=free }}
• A study on the anatomy and phylogenetic relationships of metriorhynchoids from the Jurassic Rosso Ammonitico Veronese Formation (Italy) is published by Cau (2019), who provides a revised diagnosis of Neptunidraco ammoniticus.{{Cite journal|author=Andrea Cau |year=2019 |title=A revision of the diagnosis and affinities of the metriorhynchoids (Crocodylomorpha, Thalattosuchia) from the Rosso Ammonitico Veronese Formation (Jurassic of Italy) using specimen-level analyses |journal=PeerJ |volume=7 |pages=e7364 |doi=10.7717/peerj.7364 |pmid=31523492 |pmc=6712679 |doi-access=free }}
• A three-dimensionally preserved occiput of a member of the genus Torvoneustes, indicating that members of this genus reached larger body sizes than previously supposed, is described from the Upper Jurassic Kimmeridge Clay Formation (United Kingdom) by Young et al. (2019).{{Cite journal|author1=Mark T. Young |author2=Davide Foffa |author3=Lorna Steel |author4=Steve Etches |year=2019 |title=Macroevolutionary trends in the genus Torvoneustes (Crocodylomorpha: Metriorhynchidae) and discovery of a giant specimen from the Late Jurassic of Kimmeridge, UK |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=483–493 |doi=10.1093/zoolinnean/zlz101 }}
• A study on teeth morphology and tooth enamel microstructure in Mariliasuchus amarali is published by Augusta & Zaher (2019).{{Cite journal|author1=Bruno Gonçalves Augusta |author2=Hussam Zaher |year=2019 |title=Enamel dentition microstructure of Mariliasuchus amarali (Crocodyliformes, Notosuchia), from the Upper Cretaceous (Turonian–Santonian) of the Bauru Basin, Brazil |journal=Cretaceous Research |volume=99 |pages=255–268 |doi=10.1016/j.cretres.2019.03.013 |bibcode=2019CrRes..99..255A |s2cid=134660911 }}
• A study on the arrangement and morphology of the osteoderms of baurusuchids is published by Montefeltro (2019).{{cite journal |author=Felipe C. Montefeltro |year=2019 |title=The osteoderms of baurusuchid crocodyliforms (Mesoeucrocodylia, Notosuchia) |journal=Journal of Vertebrate Paleontology |volume=39 |issue=2 |pages=e1594242 |doi=10.1080/02724634.2019.1594242 |bibcode=2019JVPal..39E4242M |s2cid=155623378 }}
• A study on the anatomy of the pterygoid region and skull airways of Caipirasuchus paulistanus and C. montealtensis is published online by Dias et al. (2019), who report possible anatomical evidence of vocal capacity of C. montealtensis.{{cite journal |author1=Willian A.F. Dias |author2=Fabiano V. Iori |author3=Aline M. Ghilardi |author4=Marcelo A. Fernandes |year=2020 |title=The pterygoid region and cranial airways of Caipirasuchus paulistanus and Caipirasuchus montealtensis (Crocodyliformes, Sphagesauridae), from the Upper Cretaceous Adamantina Formation, Bauru Basin, Brazil |journal=Cretaceous Research |volume=106 |pages=Article 104192|doi=10.1016/j.cretres.2019.104192 |bibcode=2020CrRes.10604192D |s2cid=201303113 }}
• Description of fossils and possible gastroliths of a large-bodied sphagesaurid from the Upper Cretaceous Adamantina Formation (Brazil) is published online by Cunha et al. (2019).{{cite journal |author1=Galuber Oliveira Cunha |author2=Rodrigo Santucci |author3=Marco Brandalise Andrade |author4=Carlos Eduardo Maia Oliveira |year=2020 |title=Description and phylogenetic relationships of a large-bodied sphagesaurid notosuchian from the Upper Cretaceous Adamantina Formation, Bauru Group, São Paulo, southeastern Brazil |journal=Cretaceous Research |volume=106 |pages=Article 104259 |doi=10.1016/j.cretres.2019.104259 |bibcode=2020CrRes.10604259C |hdl=10923/19661 |s2cid=204251568 |hdl-access=free }}
• Description of new fossil material of Pepesuchus from the Upper Cretaceous Adamantina Formation (Brazil) and a study on the phylogenetic relationships of this taxon is published by Geroto & Bertini (2019).{{cite journal |author1=Caio Fabricio Cezar Geroto |author2=Reinaldo J. Bertini |year=2019 |title=New material of Pepesuchus (Crocodyliformes; Mesoeucrocodylia) from the Bauru Group: implications about its phylogeny and the age of the Adamantina Formation |journal=Zoological Journal of the Linnean Society |volume=185 |issue=2 |pages=312–334 |doi=10.1093/zoolinnean/zly037 }}
• A study on the diagenesis of fossils of Montealtosuchus arrudacamposi from the Upper Cretaceous Adamantina Formation is published by Marchetti et al. (2019).{{cite journal |author1=Isadora Marchetti |author2=Fresia Ricardi-Branco |author3=Flavia Callefo |author4=Rafael Delcourt |author5=Douglas Galante |author6=Isabela Jurigan |author7=Ismar S. Carvalho |author8=Sandra A.S. Tavares |year=2019 |title=Fossildiagenesis and ontogenetic insights of crocodyliform bones from the Adamantina Formation, Bauru Basin, Brazil |journal=Journal of South American Earth Sciences |volume=96 |pages=Article 102327 |doi=10.1016/j.jsames.2019.102327 |bibcode=2019JSAES..9602327M |s2cid=202906138 }}
• A study on the phylogenetic relationships of members of Neosuchia and on the evolution of longirostry in this group is published online by Groh et al. (2019).{{cite journal |author1=Sebastian S. Groh |author2=Paul Upchurch |author3=Paul M. Barrett |author4=Julia J. Day |year=2019 |title=The phylogenetic relationships of neosuchian crocodiles and their implications for the convergent evolution of the longirostrine condition |journal=Zoological Journal of the Linnean Society |volume=188 |issue=2 |pages=473–506 |doi=10.1093/zoolinnean/zlz117 |doi-access=free }}
• A study on the taxonomic status and phylogenetic relationships of Sarcosuchus hartti is published online by Souza et al. (2019).{{cite journal |author1=Rafael G. Souza |author2=Rodrigo G. Figueiredo |author3=Sérgio A. K. Azevedo |author4=Douglas Riff |author5=Alexander W. A. Kellner |year=2019 |title=Systematic revision of Sarcosuchus hartti (Crocodyliformes) from the Recôncavo Basin (Early Cretaceous) of Bahia, north-eastern Brazil |journal=Zoological Journal of the Linnean Society |volume=188 |issue=2 |pages=552–578 |doi=10.1093/zoolinnean/zlz057 }}
• Partial dyrosaurid skeleton discovered in the 1930s in Paleocene (Danian) strata along the Atlantic coast of Senegal is described by Martin, Sarr & Hautier (2019).{{Cite journal|author1=Jeremy E. Martin |author2=Raphaël Sarr |author3=Lionel Hautier |year=2019 |title=A dyrosaurid from the Paleocene of Senegal |journal=Journal of Paleontology |volume=93 |issue=2 |pages=343–358 |doi=10.1017/jpa.2018.77 |bibcode=2019JPal...93..343M |s2cid=133882940 |url=https://hal.archives-ouvertes.fr/hal-02142639/file/2019Dyrosaurid.pdf }}
• Description of new dyrosaurid specimens from the Late Cretaceous–early Paleogene of New Jersey (United States), and a study on their implications for the validity of the species Hyposaurus rogersii, is published online by Souza et al. (2019).{{cite journal |author1=Rafael Gomes de Souza |author2=Beatriz Marinho Hörmanseder |author3=Rodrigo Giesta Figueiredo |author4=Diogenes de Almeida Campos |year=2019 |title=Description of new dyrosaurid specimens from the Late Cretaceous–Early Paleogene of New Jersey, United States, and comments on Hyposaurus systematics |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=10 |pages=1377–1393 |doi=10.1080/08912963.2019.1593403 |s2cid=108464896 }}
• Revision of the large-sized neosuchians Kansajsuchus and "Turanosuchus" from the Late Cretaceous of Central Asia is published by Kuzmin et al. (2019), who interpret Kansajsuchus as a member of Paralligatoridae, and consider Turanosuchus aralensis to be a member of the genus Kansajsuchus belonging or related to the species K. extensus.{{Cite journal|author1=Ivan T. Kuzmin |author2=Pavel P. Skutschas |author3=Elizaveta A. Boitsova |author4=Hans-Dieter Sues |year=2019 |title=Revision of the large crocodyliform Kansajsuchus (Neosuchia) from the Late Cretaceous of Central Asia |journal=Zoological Journal of the Linnean Society |volume=185 |issue=2 |pages=335–387 |doi=10.1093/zoolinnean/zly027 }}
• A study on the inner cavities of the skull of the holotype specimen of Lohuecosuchus megadontos is published by Serrano-Martínez et al. (2019).{{Cite journal|author1=Alejandro Serrano-Martínez |author2=Fabien Knoll |author3=Iván Narváez |author4=Stephan Lautenschlager |author5=Francisco Ortega |year=2019 |title=Inner skull cavities of the basal eusuchian Lohuecosuchus megadontos (Upper Cretaceous, Spain) and neurosensorial implications |journal=Cretaceous Research |volume=93 |pages=66–77 |doi=10.1016/j.cretres.2018.08.016 |bibcode=2019CrRes..93...66S |s2cid=134164904 }}
• Revision of the fossil material of Allodaposuchus precedens from Vălioara (Romania) is published online by Narváez et al. (2019), who emend the diagnosis for this species.{{cite journal |author1=Iván Narváez |author2=Christopher A. Brochu |author3=Ane De Celis |author4=Vlad Codrea |author5=Fernando Escaso |author6=Adán Pérez-García |author7=Francisco Ortega |year=2019 |title=New diagnosis for Allodaposuchus precedens, the type species of the European Upper Cretaceous clade Allodaposuchidae |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=618–634 |doi=10.1093/zoolinnean/zlz029 |doi-access=free }}
• A study on palaeodiversity of eusuchians over time is published online by De Celis, Narváez & Ortega (2019).{{cite journal |author1=Ane De Celis |author2=Iván Narváez |author3=Francisco Ortega |year=2019 |title=Spatiotemporal palaeodiversity patterns of modern crocodiles (Crocodyliformes: Eusuchia) |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=635–656 |doi=10.1093/zoolinnean/zlz038 }}
• A tooth of a juvenile specimen of Deinosuchus, providing new information on the ontogeny of this reptile, is described by Brownstein (2019).{{Cite journal|author=Chase Doran Brownstein |year=2019 |title=First record of a small juvenile giant crocodyliform and its ontogenetic and biogeographic implications |journal=Bulletin of the Peabody Museum of Natural History |volume=60 |issue=1 |pages=81–90 |doi=10.3374/014.060.0104 |s2cid=133563223 }}
• A well-preserved braincase of Diplocynodon tormis is described from the middle Eocene site of 'Teso de la Flecha' (Salamanca, Spain) by Serrano-Martínez et al. (2019).{{cite journal |author1=Alejandro Serrano-Martínez |author2=Fabien Knoll |author3=Iván Narváez |author4=Francisco Ortega |year=2019 |title=Brain and pneumatic cavities of the braincase of the basal alligatoroid Diplocynodon tormis (Eocene, Spain) |journal=Journal of Vertebrate Paleontology |volume=39 |issue=1 |pages=e1572612 |doi=10.1080/02724634.2019.1572612 |bibcode=2019JVPal..39E2612S |s2cid=132401935 |url=https://figshare.com/articles/dataset/Brain_and_pneumatic_cavities_of_the_braincase_of_the_basal_alligatoroid_i_Diplocynodon_tormis_i_Eocene_Spain_/7958609 }}
• A study on the anatomy and phylogenetic relationships of Diplocynodon hantoniensis is published online by Rio et al. (2020).{{Cite journal|author1=Jonathan P. Rio |author2=Philip D. Mannion |author3=Emanuel Tschopp |author4=Jeremy E. Martin |author5=Massimo Delfino |year=2020 |title=Reappraisal of the morphology and phylogenetic relationships of the alligatoroid crocodylian Diplocynodon hantoniensis from the late Eocene of the United Kingdom |journal=Zoological Journal of the Linnean Society |volume=188 |issue=2 |pages=579–629 |doi=10.1093/zoolinnean/zlz034 |doi-access=free |hdl=10044/1/68303 |hdl-access=free }}
• Chroust, Mazuch & Luján (2019) describe new fossil material of Diplocynodon from four sites in the Czech Republic dating to Eocene–Oligocene transition, and evaluate the implications of these fossils for the knowledge of the course of the Eocene–Oligocene cooling event in Central Europe.{{Cite journal|author1=Milan Chroust |author2=Martin Mazuch |author3=Àngel H. Luján |year=2019 |title=New crocodilian material from the Eocene–Oligocene transition of the NW Bohemia (Czech Republic): an updated fossil record in Central Europe during the Grande Coupure |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=293 |issue=1 |pages=73–82 |doi=10.1127/njgpa/2019/0832 |s2cid=199104151 }}
• New crocodylian fossils, documenting the presence of four previously unrecognised alligatoroids, are described from the Lower Miocene Castillo Formation (Venezuela) by Solórzano et al. (2019).{{Cite journal|author1=Andrés Solórzano |author2=Ascanio D. Rincón |author3=Giovanne M. Cidade |author4=Mónica Núñez-Flores |author5=Leonardo Sánchez |year=2019 |title=Lower Miocene alligatoroids (Crocodylia) from the Castillo Formation, northwest of Venezuela |journal=Palaeobiodiversity and Palaeoenvironments |volume=99 |issue=2 |pages=241–259 |doi=10.1007/s12549-018-0332-5 |bibcode=2019PdPe...99..241S |s2cid=133706564 }}
• A taxonomic and phylogenetic revision of Necrosuchus ionensis is published online by Cidade, Fortier & Hsiou (2019).{{cite journal |author1=Giovanne M. Cidade |author2=Daniel Fortier |author3=Annie S. Hsiou |year=2020 |title=Taxonomic and phylogenetic review of Necrosuchus ionensis (Alligatoroidea: Caimaninae) and the early evolution and radiation of caimanines |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=657–669 |doi=10.1093/zoolinnean/zlz051 |doi-access=free }}
• Ten late Miocene specimens of Mourasuchus, tentatively assigned to the species M. arendsi, are described from Bolivia and from the Solimões Formation of Brazil by Cidade et al. (2019), who also discuss the morphology of Mourasuchus and paleogeographic distribution of this genus in the Miocene of South America.{{cite journal |author1=Giovanne M. Cidade |author2=Jonas P. Souza-Filho |author3=Annie Schmaltz Hsiou |author4=Christopher A. Brochu |author5=Douglas Riff |year=2019 |title=New specimens of Mourasuchus (Alligatorioidea, Caimaninae) from the Miocene of Brazil and Bolivia and their taxonomic and morphological implications |journal=Alcheringa: An Australasian Journal of Palaeontology |volume=43 |issue=2 |pages=261–278 |doi=10.1080/03115518.2019.1566495 |bibcode=2019Alch...43..261C |s2cid=134832490 }}
• A study on the anatomy of the holotype of Mourasuchus amazonensis and on the taxonomic status of species belonging to the genus Mourasuchus is published by Cidade et al. (2019).{{cite journal |author1=Giovanne M. Cidade |author2=Douglas Riff |author3=Jonas P. de Souza-Filho |author4=Annie Schmaltz Hsiou |year=2019 |title=A reassessment of the osteology of Mourasuchus amazonensis Price, 1964 with comments on the taxonomy of the species |journal=Palaeontologia Electronica |volume=22 |issue=2 |pages=Article number 22.2.44 |doi=10.26879/893 |doi-access=free }}
• A study on the feeding habits of Mourasuchus is published by Cidade, Riff & Hsiou (2019).{{Cite journal|author1=Giovanne M. Cidade |author2=Douglas Riff |author3=Annie Schmaltz Hsiou |year=2019 |title=The feeding habits of the strange crocodylian Mourasuchus (Alligatoroidea, Caimaninae): a review, new hypotheses and perspectives |journal=Revista Brasileira de Paleontologia |volume=22 |issue=2 |pages=106–119 |doi=10.4072/rbp.2019.2.03 |doi-access=free }}
• A study on the structure of the vertebral column of Purussaurus mirandai, providing evidence of a deviation from the vertebral count present in all extant crocodilians, is published by Scheyer et al. (2019).{{cite journal |author1=Torsten M. Scheyer |author2=John R. Hutchinson |author3=Olivier Strauss |author4=Massimo Delfino |author5=Jorge D. Carrillo-Briceño |author6=Rodolfo Sánchez |author7=Marcelo R. Sánchez-Villagra |year=2019 |title=Giant extinct caiman breaks constraint on the axial skeleton of extant crocodylians |journal=eLife |volume=8 |pages=e49972 |doi=10.7554/eLife.49972 |pmid=31843051 |pmc=6917493 |doi-access=free }}
• A study on the taxonomic status of Balanerodus logimus and Caiman venezuelensis is published by Cidade et al. (2019).{{cite journal |author1=Giovanne M. Cidade |author2=Daniel Fortier |author3=Ascanio Daniel Rincón |author4=Annie Schmaltz Hsiou |year=2019 |title=Taxonomic review of two fossil crocodylians from the Cenozoic of South America and its implications for the crocodylian fauna of the continent |journal=Zootaxa |volume=4656 |issue=3 |pages=475–486 |doi=10.11646/zootaxa.4656.3.5 |pmid=31716812 |s2cid=202012442 }}
• Fossils of a specimen of Asiatosuchus depressifrons from the late Paleocene of Mont de Berru (France), representing the oldest European crocodyloid remains reported so far, are described by Delfino et al. (2019).{{Cite journal|author1=Massimo Delfino |author2=Jeremy E. Martin |author3=France de Lapparent de Broin |author4=Thierry Smith |year=2019 |title=Evidence for a pre-PETM dispersal of the earliest European crocodyloids |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=7 |pages=845–852 |doi=10.1080/08912963.2017.1396323 |bibcode=2019HBio...31..845D |s2cid=134404960 }}
• A study on geographical origin, historical biogeography and evolution of traits aiding dispersal of members of the genus Crocodylus is published by Nicolaï & Matzke (2019).{{Cite journal|author1=Michaël P. J. Nicolaï |author2=Nicholas J. Matzke |year=2019 |title=Trait-based range expansion aided in the global radiation of Crocodylidae |journal=Global Ecology and Biogeography |volume=28 |issue=9 |pages=1244–1258 |doi=10.1111/geb.12929 |doi-access=free |bibcode=2019GloEB..28.1244N }}
• Evidence of gavialine-specific atavistic characters in the skeletons of fossil tomistomines Penghusuchus pani and Toyotamaphimeia machikanensis is presented by Iijima & Kobayashi (2019).{{Cite journal|author1=Masaya Iijima |author2=Yoshitsugu Kobayashi |year=2019 |title=Mosaic nature in the skeleton of East Asian crocodylians fills the morphological gap between "Tomistominae" and Gavialinae |journal=Cladistics |volume=35 |issue=6 |pages=623–632 |doi=10.1111/cla.12372 |pmid=34618925 |s2cid=91400957 |doi-access=free }}
• Skull and mandibular elements of a tomistomine (probably belonging to the genus Maomingosuchus) are described from the late Eocene lignite seams of Krabi (Thailand) by Martin et al. (2019), providing evidence of tomistomines living in the tropics in the late Eocene.{{Cite journal|author1=Jeremy E. Martin |author2=Komsorn Lauprasert |author3=Haiyan Tong |author4=Varavudh Suteethorn |author5=Eric Buffetaut |year=2019 |title=An Eocene tomistomine from peninsular Thailand |journal=Annales de Paléontologie |volume=105 |issue=3 |pages=245–253 |doi=10.1016/j.annpal.2019.03.002 |bibcode=2019AnPal.105..245M |s2cid=150247415 |url=https://hal.archives-ouvertes.fr/hal-02121886/file/2019Krabi-HAL%20version.pdf }}
• A revision of members of the genus Gavialis described on the basis of fossils from the Sivalik Hills of India and Pakistan is published by Martin (2019).{{Cite journal|author=Jeremy E. Martin |year=2019 |title=The taxonomic content of the genus Gavialis from the Siwalik Hills of India and Pakistan |journal=Papers in Palaeontology |volume=5 |issue=3 |pages=483–497 |doi=10.1002/spp2.1247 |bibcode=2019PPal....5..483M |s2cid=134966832 |url=https://hal.archives-ouvertes.fr/hal-02123647/file/2019Gavialis.pdf }}
• A study on the systematics of crocodilians known from the Oligocene fossil locality of Monteviale (Italy) is published by Macaluso et al. (2019).{{cite journal |author1=Loredana Macaluso |author2=Jeremy E. Martin |author3=Letizia Del Favero |author4=Massimo Delfino |year=2019 |title=Revision of the crocodilians from the Oligocene of Monteviale, Italy, and the diversity of European eusuchians across the Eocene-Oligocene boundary |journal=Journal of Vertebrate Paleontology |volume=39 |issue=2 |pages=e1601098 |doi=10.1080/02724634.2019.1601098 |bibcode=2019JVPal..39E1098M |s2cid=191206692 |url=https://hal.archives-ouvertes.fr/hal-02143821/file/2019Monteviale-HAL%20version.pdf }}
• A revision of fossil record of Cenozoic crocodilians from Sardinia (Italy) is published by Zoboli et al. (2019).{{cite journal |author1=Daniel Zoboli |author2=Luigi Sanciu |author3=Gian Luigi Pillola |author4=Massimo Delfino |year=2019 |title=An overview of the crocodylian fossil record from Sardinia (Italy) |journal=Annales de Paléontologie |volume=105 |issue=2 |pages=123–137 |doi=10.1016/j.annpal.2019.05.001 |bibcode=2019AnPal.105..123Z |hdl=11584/269866 |s2cid=189985425 |hdl-access=free }}
• A review of the fossil crocodylomorph fauna of the Cenozoic of South America is published by Cidade, Fortier & Hsiou (2019).{{Cite journal|author1=Giovanne M. Cidade |author2=Daniel Fortier |author3=Annie Schmaltz Hsiou |year=2019 |title=The crocodylomorph fauna of the Cenozoic of South America and its evolutionary history: A review |journal=Journal of South American Earth Sciences |volume=90 |pages=392–411 |doi=10.1016/j.jsames.2018.12.026 |bibcode=2019JSAES..90..392C |s2cid=134902094 }}
• A method for the quantification of size- and shape-heterodonty in members of Crocodylia is presented by D'Amore et al. (2019), who apply their method to extant and fossil crocodylomorphs.{{Cite journal|author1=Domenic C. D'Amore |author2=Megan Harmon |author3=Stephanie K. Drumheller |author4=Jason J. Testin |year=2019 |title=Quantitative heterodonty in Crocodylia: assessing size and shape across modern and extinct taxa |journal=PeerJ |volume=7 |pages=e6485 |doi=10.7717/peerj.6485 |pmid=30842900 |pmc=6397764 |doi-access=free }}
• A study on the global diversification dynamics of crocodylians since the Cretaceous is published online by Solórzano et al. (2019).{{Cite journal|author1=Andrés Solórzano |author2=Mónica Núñez-Flores |author3=Oscar Inostroza-Michael |author4=Cristián E. Hernández |year=2019 |title=Biotic and abiotic factors driving the diversification dynamics of Crocodylia |journal=Palaeontology |volume=63 |issue=3 |pages=415–429 |doi=10.1111/pala.12459 |s2cid=214329634 }}
• A study testing whether the bone ornamentation may play a role in terms of load-bearing capacity and mechanical strength of pseudosuchian osteoderms, based on data from five osteoderms of crocodylomorphs (representing four species: Caiman crocodilus, Osteolaemus tetraspis, Hyposaurus rogersii, Sarcosuchus imperator) and one aetosaur osteoderm (Aetosaurus sp.), is published by Clarac et al. (2019).{{cite journal |author1=François Clarac |author2=Florent Goussard |author3=Vivian de Buffrénil |author4=Vittorio Sansalone |year=2019 |title=The function(s) of bone ornamentation in the crocodylomorph osteoderms: a biomechanical model based on a finite element analysis |journal=Paleobiology |volume=45 |issue=1 |pages=182–200 |doi=10.1017/pab.2018.48 |bibcode=2019Pbio...45..182C |s2cid=92499041 }}
• A study on the utility of head width as a body size proxy in extant crocodylians, and on its implications for estimates of body size of extinct crocodyliforms, is published by O'Brien et al. (2019).{{cite journal |author1=Haley D. O'Brien |author2=Leigha M. Lynch |author3=Kent A. Vliet |author4=John Brueggen |author5=Gregory M. Erickson |author6=Paul M. Gignac |year=2019 |title=Crocodylian head width allometry and phylogenetic prediction of body size in extinct crocodyliforms |journal=Integrative Organismal Biology |volume=1 |issue=1 |pages=obz006 |doi=10.1093/iob/obz006 |pmid=33791523 |pmc=7671145 |doi-access=free }}
• A study comparing skull anatomy and inferred head musculature, stress distribution in skulls and feeding mechanisms in members of the genera Pelagosaurus and Gavialis, and evaluating changes in mandibular function and feeding through time in the macroevolution of Crocodylomorpha, is published by Ballell et al. (2019).{{cite journal |author1=Antonio Ballell |author2=Benjamin C. Moon |author3=Laura B. Porro |author4=Michael J. Benton |author5=Emily J. Rayfield |year=2019 |title=Convergence and functional evolution of longirostry in crocodylomorphs |journal=Palaeontology |volume=62 |issue=6 |pages=867–887 |doi=10.1111/pala.12432 |bibcode=2019Palgy..62..867B |doi-access=free |hdl=1983/cecf5a59-d6f9-487a-ac3d-86f5df1a9549 |hdl-access=free }}
• Description of fossils of longirostrine crocodylians from the Bartonian of southern Morocco is published by Jouve, Khalloufi & Zouhri (2019), who also discuss the implications of these fossils for the knowledge of the evolution of crocodylians through the Eocene–Oligocene transition.{{cite journal |author1=Stéphane Jouve |author2=Bouziane Khalloufi |author3=Samir Zouhri |year=2019 |title=Longirostrine crocodylians from the Bartonian of Morocco and Paleogene climatic and sea level oscillations in the Peri-Tethys area |journal=Journal of Vertebrate Paleontology |volume=39 |issue=3 |pages=e1617723 |doi=10.1080/02724634.2019.1617723 |bibcode=2019JVPal..39E7723J |s2cid=196677606 |url=https://hal.sorbonne-universite.fr/hal-02182494/file/Longirostrine%20crocodylians%20from%20the%20Bartonian%20of%20Morocco%20and%20Paleogene%20climatic%20and%20sea%20level%20oscillations%20in%20the%20Peri%20Tethys%20area.pdf }}
• A study on the diversity of Late Jurassic crocodylomorph teeth from Valmitão (Lourinhã Formation, Portugal), and on the ecological niches and feeding behaviours of crocodylomorphs from this assemblage, is published online by Guillaume et al. (2019).{{cite journal |author1=Alexandre R. D. Guillaume |author2=Miguel Moreno-Azanza |author3=Eduardo Puértolas-Pascual |author4=Octávio Mateus |year=2019 |title=Palaeobiodiversity of crocodylomorphs from the Lourinhã Formation based on the tooth record: insights into the palaeoecology of the Late Jurassic of Portugal |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=549–583 |doi=10.1093/zoolinnean/zlz112 }}
• Rivera-Sylva et al. (2019) report the first crocodyliform remains from La Parrita locality (Campanian Cerro del Pueblo Formation, Coahuila, Mexico).{{Cite journal|author1=Héctor E. Rivera-Sylva |author2=Gerardo Carbot-Chanona |author3=Rafael Vivas-González |author4=Lizbeth Nava-Rodríguez |author5=Fernando Cabral-Valdéz |year=2019 |title=The first crocodyliforms remains from La Parrita locality, Cerro del Pueblo Formation (Campanian), Coahuila, Mexico |journal=Boletín de la Sociedad Geológica Mexicana |volume=71 |issue=3 |pages=727–739 |doi=10.18268/BSGM2019v71n3a6 |doi-access=free }}
• Description of an isolated crocodyliform tooth from the upper Eocene Ergilin Dzo Formation (Mongolia) and a study on the implications of this fossil for the knowledge of the regional paleoclimate of the area of Mongolia during the late Eocene is published by Iijima et al. (2019).{{cite journal |author1=Masaya Iijima |author2=Takehisa Tsubamoto |author3=Khishigjav Tsogtbaatar |author4=Tsogtbaatar Chinzorig |author5=Soyol Baasankhuu |year=2019 |title=Discovery of a crocodyliform tooth from the upper Eocene Ergilin Dzo Formation, Mongolia |journal=Acta Palaeontologica Polonica |volume=64 |issue=4 |pages=775–778 |doi=10.4202/app.00633.2019 |doi-access=free }}
• A study on the morphological diversity and phylogenetic affinities of crocodylomorph teeth from the Maastrichtian Tremp Formation (north-eastern Spain) is published online by Blanco et al. (2019).{{cite journal |author1=Alejandro Blanco |author2=Eduardo Puértolas-Pascual |author3=Josep Marmi |author4=Blanca Moncunill-Solé |author5=Sergio Llácer |author6=Gertrud E. Rössner |year=2020 |title=Late Cretaceous (Maastrichtian) crocodyliforms from north-eastern Iberia: a first attempt to explain the crocodyliform diversity based on tooth qualitative traits |journal=Zoological Journal of the Linnean Society |volume=189 |issue=2 |pages=584–617 |doi=10.1093/zoolinnean/zlz106 }}

• A study aiming to identify the most likely area for the geographic origin of dinosaurs is published by Lee et al. (2019).{{Cite journal|author1=Michael S. Y. Lee |author2=Matthew G. Baron |author3=David B. Norman |author4=Paul M. Barrett |year=2019 |title=Dynamic biogeographic models and dinosaur origins |journal=Earth and Environmental Science Transactions of the Royal Society of Edinburgh |volume=109 |issue= 1–2|pages= 325–332|doi=10.1017/S1755691018000920 |s2cid=134291631 }}
• A study evaluating the impact of new fossil discoveries and changing phylogenetic hypotheses on biogeographical scenarios for dinosaur origins is published by Marsola et al. (2019).{{cite journal |author1=Júlio C. A. Marsola |author2=Gabriel S. Ferreira |author3=Max C. Langer |author4=David J. Button |author5=Richard J. Butler |year=2019 |title=Increases in sampling support the southern Gondwanan hypothesis for the origin of dinosaurs |journal=Palaeontology |volume=62 |issue=3 |pages=473–482 |doi=10.1111/pala.12411 |bibcode=2019Palgy..62..473M |s2cid=134264303 |url=http://pure-oai.bham.ac.uk/ws/files/54549586/Marsola_et_al._in_press.pdf }}
• A study aiming to determine the degree of differences of dinosaur phylogenies inferred from skull and postcranial characters is published online by Li, Ruta & Wills (2019).{{cite journal |author1=Yimeng Li |author2=Marcello Ruta |author3=Matthew A. Wills |year=2019 |title=Craniodental and postcranial characters of non-avian Dinosauria often imply different trees |journal=Systematic Biology |volume=69 |issue=4 |pages=638–659 |doi=10.1093/sysbio/syz077 |pmid=31769837 |pmc=7302058 |s2cid=203357898 }}
• A study on the chronostratigraphic position of the uppermost Cretaceous dinosaur localities from south-western Europe, and on their implications for inferring the course of the Maastrichtian dinosaur turnover, is published by Fondevilla et al. (2019).{{cite journal |author1=V. Fondevilla |author2=V. Riera |author3=B. Vila |author4=A. G. Sellés |author5=J. Dinarès-Turell |author6=E. Vicens |author7=R. Gaete |author8=O. Oms |author9=À. Galobart |year=2019 |title=Chronostratigraphic synthesis of the latest Cretaceous dinosaur turnover in South-Western Europe |journal=Earth-Science Reviews |volume=191 |pages=168–189 |doi=10.1016/j.earscirev.2019.01.007 |bibcode=2019ESRv..191..168F |s2cid=135231891 }}
• A study aiming to quantify the habitat of latest Cretaceous North American dinosaurs, based on data from fossil occurrences and climatic and environmental modelling, and evaluating its implications for inferring whether dinosaur diversity was in decline prior to the Cretaceous–Paleogene extinction event, is published by Chiarenza et al. (2019).{{cite journal |author1=Alfio Alessandro Chiarenza |author2=Philip D. Mannion |author3=Daniel J. Lunt |author4=Alex Farnsworth |author5=Lewis A. Jones |author6=Sarah-Jane Kelland |author7=Peter A. Allison |year=2019 |title=Ecological niche modelling does not support climatically-driven dinosaur diversity decline before the Cretaceous/Paleogene mass extinction |journal=Nature Communications |volume=10 |issue=1 |pages=Article number 1091 |doi=10.1038/s41467-019-08997-2 |pmid=30842410 |pmc=6403247 |bibcode=2019NatCo..10.1091C }}
• A study on factors determining the community richness of large herbivorous dinosaurs from the Campanian Dinosaur Park Formation (Alberta, Canada) is published by Mallon (2019).{{Cite journal|author=Jordan C. Mallon |year=2019 |title=Competition structured a Late Cretaceous megaherbivorous dinosaur assemblage |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 15447 |doi=10.1038/s41598-019-51709-5 |pmid=31659190 |pmc=6817909 |bibcode=2019NatSR...915447M }}
• A review of the fossil record of Late Cretaceous non-avian dinosaurs from the James Ross Basin (Antarctica) is published by Lamanna et al. (2019), who also describe fragmentary new ankylosaur and ornithopod material from the Cape Lamb Member of the Snow Hill Island Formation and the Sandwich Bluff Member of the Lopez de Bertodano Formation.{{cite journal |author1=Matthew C. Lamanna |author2=Judd A. Case |author3=Eric M. Roberts |author4=Victoria M. Arbour |author5=Ricardo C. Ely |author6=Steven W. Salisbury |author7=Julia A. Clarke |author8=D. Edward Malinzak |author9=Abagael R. West |author10=Patrick M. O'Connor |year=2019 |title=Late Cretaceous non-avian dinosaurs from the James Ross Basin, Antarctica: description of new material, updated synthesis, biostratigraphy, and paleobiogeography |journal=Advances in Polar Science |volume=30 |issue=3 |pages=228–250 |doi=10.13679/j.advps.2019.0007 }}
• A review and evaluation of studies on molecular data from Mesozoic dinosaur fossils is published by Schweitzer et al. (2019).{{cite journal |author1=Mary Higby Schweitzer |author2=Elena R. Schroeter |author3=Timothy P. Cleland |author4=Wenxia Zheng |year=2019 |title=Paleoproteomics of Mesozoic dinosaurs and other Mesozoic fossils |journal=Proteomics |volume=19 |issue=16 |pages=Article 1800251|doi=10.1002/pmic.201800251 |pmid=31172628 |doi-access=free }}
• A study on the nature of putative remains of ancient proteins, blood vessels, and cells preserved with dinosaur fossils, based on data from fossils of Centrosaurus apertus from the Dinosaur Park Formation (Alberta, Canada), is published by Saitta et al. (2019).{{cite journal |author1=Evan T. Saitta |author2=Renxing Liang |author3=Maggie C.Y. Lau |author4=Caleb M. Brown |author5=Nicholas R. Longrich |author6=Thomas G. Kaye |author7=Ben J. Novak |author8=Steven L. Salzberg |author9=Mark A. Norell |author10=Geoffrey D. Abbott |author11=Marc R. Dickinson |author12=Jakob Vinther |author13=Ian D. Bull |author14=Richard A. Brooker |author15=Peter Martin |author16=Paul Donohoe |author17=Timothy D.J. Knowles |author18=Kirsty E.H. Penkman|author18-link= Kirsty Penkman |author19=Tullis Onstott |year=2019 |title=Cretaceous dinosaur bone contains recent organic material and provides an environment conducive to microbial communities |journal=eLife |volume=8 |pages=e46205 |doi=10.7554/eLife.46205 |pmid=31210129 |pmc=6581507 |doi-access=free }}
• A study on the olfactory bulb ratio (the size of the olfactory bulb relative to the cerebral hemisphere) in dinosaurs, and on its implication for inferring olfactory acuity of dinosaurs, is published by Hughes & Finarelli (2019).{{Cite journal|author1=Graham M. Hughes |author2=John A. Finarelli |year=2019 |title=Olfactory receptor repertoire size in dinosaurs |journal=Proceedings of the Royal Society B: Biological Sciences |volume=286 |issue=1904 |pages=Article ID 20190909 |doi=10.1098/rspb.2019.0909 |pmid=31185870 |pmc=6571463 }}
• A study on vascular correlates in dinosaur skulls, evaluating their implications for the knowledge of thermoregulatory strategies of dinosaurs of different sizes, is published online by Porter & Witmer (2019).{{Cite journal|author1=Wm. Ruger Porter |author2=Lawrence M. Witmer |year=2019 |title=Vascular patterns in the heads of dinosaurs: evidence for blood vessels, sites of thermal exchange, and their role in physiological thermoregulatory strategies |journal=The Anatomical Record |volume=303 |issue=4 |pages=1075–1103 |doi=10.1002/ar.24234 |pmid=31618532 |s2cid=204755747 |doi-access=free }}
• A review of the diversity of the musculature of the skulls of herbivorous dinosaurs is published online by Nabavizadeh (2019).{{cite journal |author=Ali Nabavizadeh |year=2020 |title=Cranial musculature in herbivorous dinosaurs: a survey of reconstructed anatomical diversity and feeding mechanisms |journal=The Anatomical Record |volume=303 |issue=4 |pages=1104–1145 |doi=10.1002/ar.24283 |pmid=31675182 |s2cid=207815224 |doi-access=free }}
• A study on the evolution of different modes of herbivory in non-avian dinosaurs is published online by Button & Zanno (2019).{{cite journal |author1=David J. Button |author2=Lindsay E. Zanno |year=2019 |title=Repeated evolution of divergent modes of herbivory in non-avian dinosaurs |journal=Current Biology |volume=30 |issue= 1|pages= 158–168.e4|doi=10.1016/j.cub.2019.10.050 |pmid=31813611 |s2cid=208652510 |doi-access=free }}
• A study on the structure of eggshells of eggs produced by Lufengosaurus, Massospondylus and Mussaurus, representing the oldest confirmed amniote eggshells reported so far, is published by Stein et al. (2019).{{Cite journal|author1=Koen Stein |author2=Edina Prondvai |author3=Timothy Huang |author4=Jean-Marc Baele |author5=P. Martin Sander |author6=Robert Reisz |year=2019 |title=Structure and evolutionary implications of the earliest (Sinemurian, Early Jurassic) dinosaur eggs and eggshells |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 4424 |doi=10.1038/s41598-019-40604-8 |pmid=30872623 |pmc=6418122 |bibcode=2019NatSR...9.4424S }}
• Description of dinosaur egg fossils from the late Early Cretaceous Chaochuan Formation (Zhejiang, China) is published by Zhang et al. (2019), who name a new ootaxon Multifissoolithus chianensis.{{Cite journal|author1=Shu-Kang Zhang |author2=Jun-Fang Xie |author3=Xing-Sheng Jin |author4=Tian-Ming Du |author5=Mei-Yan Huang |year=2019 |title=New type of dinosaur eggs from Yiwu, Zhejiang Province, China and a revision of Dongyangoolithus nanmaensis |journal=Vertebrata PalAsiatica |volume=57 |issue=4 |pages=325–333 |doi=10.19615/j.cnki.1000-3118.190107 }}
• Dinosaurs eggs assigned to the oofamily Dendroolithidae are described from the Late Cretaceous Zhaoying Formation (China) by He et al. (2019), who name a new ootaxon Pionoolithus quyuangangensis.{{Cite journal|author1=Qing He |author2=Shukang Zhang |author3=Lida Xing |author4=Qin Jiang |author5=Yanfei An |author6=Sen Yang |year=2019 |title=A new oogenus of Dendroolithidae from the Late Cretaceous in the Quyuangang area, Henan Province, China |journal=Acta Geologica Sinica (English Edition) |volume=93 |issue=2 |pages=477–478 |doi=10.1111/1755-6724.13779 |bibcode=2019AcGlS..93..477H |s2cid=135361965 |url=http://www.geojournals.cn/dzxben/ch/reader/view_abstract.aspx?file_no=2019endzxb02018&flag=1 }}
• Dinosaurs eggs assigned to the oofamily Faveoloolithidae are described from the Upper Cretaceous (Coniacian–Santonian) siltstones within the Daeri Andesite of the Wido Volcanics (South Korea) by Kim et al. (2019), who name a new ootaxon Propagoolithus widoensis.{{Cite journal|author1=Noe-Heon Kim |author2=Seung Choi |author3=Seongyeong Kim |author4=Yuong-Nam Lee |year=2019 |title=A new faveoloolithid oogenus from the Wido Volcanics (Upper Cretaceous), South Korea and a new insight into the oofamily Faveoloolithidae |journal=Cretaceous Research |volume=100 |pages=145–163 |doi=10.1016/j.cretres.2019.04.001 |bibcode=2019CrRes.100..145K |doi-access=free }}
• Possible dromaeosaurid eggshells are described from the Upper Cretaceous Wido Volcanics (South Korea) by Choi & Lee (2019), who name a new ootaxon Reticuloolithus acicularis.{{Cite journal|author1=Seung Choi |author2=Yuong-Nam Lee |year=2019 |title=Possible Late Cretaceous dromaeosaurid eggshells from South Korea: a new insight into dromaeosaurid oology |journal=Cretaceous Research |volume=103 |pages=Article 104167 |doi=10.1016/j.cretres.2019.06.013 |bibcode=2019CrRes.10304167C |s2cid=198415616 |doi-access=free }}
• Description of an intact dinosaur egg from the Cretaceous Wayan Formation (Idaho, United States) assigned to the oogenus Macroelongatoolithus is published by Simon et al. (2019), who interpret this specimen as evidence of presence of a Gigantoraptor-sized oviraptorosaur in western North America.{{cite journal |author1=D. Jade Simon |author2=David J. Varricchio |author3=Xingsheng Jin |author4=Steven F. Robison |year=2019 |title=Microstructural overlap of Macroelongatoolithus eggs from Asia and North America expands the occurrence of colossal oviraptorosaurs |journal=Journal of Vertebrate Paleontology |volume=38 |issue=6 |pages=e1553046 |doi=10.1080/02724634.2018.1553046 |s2cid=191155027 }}
• A study on the embryonic metabolism of Troodon formosus, Protoceratops andrewsi and Hypacrosaurus stebingeri, and on its implications for the knowledge of the incubation times for dinosaur eggs, is published by Lee (2019).{{Cite journal|author=Scott A. Lee |year=2019 |title=Trends in embryonic and ontogenetic growth metabolisms in nonavian dinosaurs and extant birds, mammals, and crocodylians with implications for dinosaur egg incubation |journal=Physical Review E |volume=99 |issue=5 |pages=Article 052405 |doi=10.1103/PhysRevE.99.052405 |pmid=31212519 |bibcode=2019PhRvE..99e2405L |s2cid=182172120 }}
• A new dinosaur nesting site, preserving at least 15 egg clutches probably laid by a non-avian theropod dinosaur, is described from the Upper Cretaceous Javkhlant Formation (Mongolia) by Tanaka et al. (2019), who interpret the finding as evidence of colonial nesting in a non-avian dinosaur.{{Cite journal|author1=Kohei Tanaka |author2=Yoshitsugu Kobayashi |author3=Darla K. Zelenitsky |author4=François Therrien |author5=Yuong-Nam Lee |author6=Rinchen Barsbold |author7=Katsuhiro Kubota |author8=Hang-Jae Lee |author9=Tsogtbaatar Chinzorig |author10=Damdinsuren Idersaikhan |s2cid=198412503 |year=2019 |title=Exceptional preservation of a Late Cretaceous dinosaur nesting site from Mongolia reveals colonial nesting behavior in a non-avian theropod |journal=Geology |volume=47 |issue=9 |pages=843–847 |doi=10.1130/G46328.1 |bibcode=2019Geo....47..843T }}
• A study aiming to determine possible shifts from quadrupedality to bipedality during ontogeny in dinosaurs is published online by Chapelle et al. (2019).{{cite journal |author1=Kimberley E. J. Chapelle |author2=Roger B. J. Benson |author3=Josef Stiegler |author4=Alejandro Otero |author5=Qi Zhao |author6=Jonah N. Choiniere |year=2019 |title=A quantitative method for inferring locomotory shifts in amniotes during ontogeny, its application to dinosaurs and its bearing on the evolution of posture |journal=Palaeontology |volume=63 |issue=2 |pages=229–242 |doi=10.1111/pala.12451 |s2cid=210278749 |url=https://ora.ox.ac.uk/objects/uuid:1b410364-b3cf-41ac-9652-da707d0461ab }}
• A review of evidence of probable responses of dinosaurs to serious injuries is presented by Hearn & Williams (2019).{{Cite journal|author1=Les Hearn |author2=Amanda C. de C. Williams |year=2019 |title=Pain in dinosaurs: what is the evidence? |journal=Philosophical Transactions of the Royal Society B: Biological Sciences |volume=374 |issue=1785 |pages=Article ID 20190370 |doi=10.1098/rstb.2019.0370 |pmid=31544618 |pmc=6790383 }}
• A study on the phylogenetic placement of Chilesaurus diegosuarezi and its implications for the phylogenetic relationships of major dinosaur groups is published by Müller & Dias-da-Silva (2019).{{Cite journal|author1=Rodrigo Temp Müller |author2=Sérgio Dias-da-Silva |year=2019 |title=Taxon sample and character coding deeply impact unstable branches in phylogenetic trees of dinosaurs |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=8 |pages=1089–1092 |doi=10.1080/08912963.2017.1418341 |bibcode=2019HBio...31.1089M |s2cid=90746262 }}

• A study on specimen completeness in the fossil record of non-avian theropod dinosaurs is published by Cashmore & Butler (2019).{{Cite journal|author1=Daniel D. Cashmore |author2=Richard J. Butler |year=2019 |title=Skeletal completeness of the non-avian theropod dinosaur fossil record |journal=Palaeontology |volume=62 |issue=6 |pages=951–981 |doi=10.1111/pala.12436 |doi-access=free |bibcode=2019Palgy..62..951C }}
• A study on the distribution of discrete dental characters in theropod dinosaurs, and on the taxonomic value of theropod teeth, is published by Hendrickx et al. (2019).{{cite journal |author1=Christophe Hendrickx |author2=Octávio Mateus |author3=Ricardo Araújo |author4=Jonah Choiniere |year=2019 |title=The distribution of dental features in non-avian theropod dinosaurs: Taxonomic potential, degree of homoplasy, and major evolutionary trends |journal=Palaeontologia Electronica |volume=22 |issue=3 |pages=Article number 22.3.74 |doi=10.26879/820 |doi-access=free |hdl=11336/146011 |hdl-access=free }}
• A study aiming to evaluate whether the maximum body size of theropod dinosaurs increased across the Triassic-Jurassic boundary is published online by Griffin & Nesbitt (2019).{{Cite journal|author1=Christopher T. Griffin |author2=Sterling J. Nesbitt |year=2019 |title=Does the maximum body size of theropods increase across the Triassic-Jurassic boundary? Integrating ontogeny, phylogeny, and body size |journal=The Anatomical Record |volume=303 |issue=4 |pages=1158–1169 |doi=10.1002/ar.24130 |pmid=30968581 |s2cid=106410695 |doi-access=free }}
• A revision of theropod dinosaur fossils from the Late Jurassic to mid-Cretaceous of Southeast Asia is published by Samathi, Chanthasit & Sander (2019).{{Cite journal|author1=Adun Samathi |author2=Phornphen Chanthasit |author3=Paul Martin Sander |year=2019 |title=A review of theropod dinosaurs from the Late Jurassic to mid-Cretaceous of Southeast Asia |journal=Annales de Paléontologie |volume=105 |issue=3 |pages=201–215 |doi=10.1016/j.annpal.2019.03.003 |bibcode=2019AnPal.105..201S |s2cid=197574833 }}
• Description of theropod dinosaur teeth from the Lower Cretaceous (Barremian-Aptian) Ilek Formation (West Siberia, Russia) is published by Averianov, Ivantsov & Skutschas (2019).{{cite journal |author1=A.O. Averianov |author2=S.V. Ivantsov |author3=P.P. Skutschas |year=2019 |title=Theropod teeth from the Lower Cretaceous Ilek Formation of Western Siberia, Russia |journal=Proceedings of the Zoological Institute of the Russian Academy of Sciences |volume=323 |issue=2 |pages=65–84 |doi=10.31610/trudyzin/2019.323.2.65 |doi-access=free }}
• A study re-assessing the evidence for evolutionary allometric trends in the forelimbs of non-avian theropod dinosaurs is published by Palma Liberona et al. (2019).{{cite journal |author1=José A. Palma Liberona |author2=Sergio Soto-Acuña |author3=Marco A. Mendez |author4=Alexander O. Vargas |year=2019 |title={{sic|Asse|sment|nolink=y}} and interpretation of negative forelimb allometry in the evolution of non-avian Theropoda |journal=Frontiers in Zoology |volume=16 |issue=1 |pages=Article 44 |doi=10.1186/s12983-019-0342-9 |pmid=31827570 |pmc=6889632 |doi-access=free }}
• Redescription of the holotype specimen of Chindesaurus bryansmalli and a study on the phylogenetic relationships of this species is published by Marsh et al. (2019).{{cite journal |author1=Adam D. Marsh |author2=William G. Parker |author3=Max C. Langer |author4=Sterling J. Nesbitt |year=2019 |title=Redescription of the holotype specimen of Chindesaurus bryansmalli Long and Murry, 1995 (Dinosauria, Theropoda), from Petrified Forest National Park, Arizona |journal=Journal of Vertebrate Paleontology |volume=39 |issue=3 |pages=e1645682 |doi=10.1080/02724634.2019.1645682 |bibcode=2019JVPal..39E5682M |s2cid=202865005 }}
• Description of two fragmentary neotheropod specimens from the Upper Triassic Bull Canyon Formation (New Mexico, United States), and a study on their implications for the knowledge of body size evolution among early theropods, is published by Griffin (2019).{{Cite journal|author=Christopher T. Griffin |year=2019 |title=Large neotheropods from the Upper Triassic of North America and the early evolution of large theropod body sizes |journal=Journal of Paleontology |volume=93 |issue=5 |pages=1010–1030 |doi=10.1017/jpa.2019.13 |bibcode=2019JPal...93.1010G |doi-access=free }}
• A study on the anatomy of the braincase, the skull endocast and the inner ear of Zupaysaurus rougieri is published by Paulina-Carabajal, Ezcurra & Novas (2019).{{cite journal |author1=Ariana Paulina-Carabajal |author2=Martín D. Ezcurra |author3=Fernando E. Novas |year=2019 |title=New information on the braincase and endocranial morphology of the Late Triassic neotheropod Zupaysaurus rougieri using Computed Tomography data |journal=Journal of Vertebrate Paleontology |volume=39 |issue=3 |pages=e1630421 |doi=10.1080/02724634.2019.1630421 |bibcode=2019JVPal..39E0421P |s2cid=201210215 |url=https://figshare.com/articles/dataset/New_information_on_the_braincase_and_endocranial_morphology_of_the_Late_Triassic_neotheropod_i_Zupaysaurus_rougieri_i_using_Computed_Tomography_data/9222809 }}
• A study on range of motion and functions of the forelimbs of Dilophosaurus wetherilli is published by Senter & Sullivan (2019).{{cite journal |author1=Philip J. Senter |author2=Corwin Sullivan |year=2019 |title=Forelimbs of the theropod dinosaur Dilophosaurus wetherilli: Range of motion, influence of paleopathology and soft tissues, and description of a distal carpal bone |journal=Palaeontologia Electronica |volume=22 |issue=2 |pages=Article number 22.2.30 |doi=10.26879/900 |doi-access=free }}
• A study on the paleobiology of Cryolophosaurus is published by Yun (2019).{{cite journal |author=Changyu Yun |year=2019 |title=An enigmatic theropod Cryolophosaurus: Reviews and comments on its paleobiology |journal=Volumina Jurassica |volume=17 |pages=103–110 |url=https://voluminajurassica.org/resources/html/article/details?id=190486 |access-date=2019-07-20 |archive-url=https://web.archive.org/web/20190720091503/https://voluminajurassica.org/resources/html/article/details%3Fid%3D190486 |archive-date=2019-07-20 |url-status=dead }}
• A study on tooth formation and replacement rates in Majungasaurus, Ceratosaurus and Allosaurus is published by D'Emic et al. (2019).{{Cite journal|author1=Michael D. D'Emic |author2=Patrick M. O'Connor |author3=Thomas R. Pascucci |author4=Joanna N. Gavras |author5=Elizabeth Mardakhayava |author6=Eric K. Lund |year=2019 |title=Evolution of high tooth replacement rates in theropod dinosaurs |journal=PLOS ONE |volume=14 |issue=11 |pages=e0224734 |doi=10.1371/journal.pone.0224734 |pmid=31774829 |pmc=6880968 |bibcode=2019PLoSO..1424734D |doi-access=free }}
• A study on the ecology of Ceratosaurus is published by Yun (2019).{{cite journal |author=Changyu Yun |year=2019 |title=Comments on the ecology of Jurassic theropod dinosaur Ceratosaurus (Dinosauria: Theropoda) with critical reevaluation for supposed semiaquatic lifestyle |journal=Volumina Jurassica |volume=17 |pages=111–116 |url=https://voluminajurassica.org/resources/html/article/details?id=190487 |access-date=2019-07-20 |archive-url=https://web.archive.org/web/20190720091510/https://voluminajurassica.org/resources/html/article/details%3Fid%3D190487 |archive-date=2019-07-20 |url-status=dead }}
• A study on the phylogenetic relationships of Afromimus tenerensis is published by Cerroni et al. (2019), who consider this taxon to be more likely an abelisauroid rather than an ornithomimosaur.{{cite journal |author1=Mauricio A. Cerroni |author2=Federico L. Agnolin |author3=Federico Brissón Egli |author4=Fernando E. Novas |year=2019 |title=The phylogenetic position of Afromimus tenerensis Sereno, 2017 and its paleobiogeographical implications |journal=Journal of African Earth Sciences |volume=159 |pages=Article 103572 |doi=10.1016/j.jafrearsci.2019.103572 |bibcode=2019JAfES.15903572C |s2cid=201352476 }}
• Description of isolated neck vertebrae of abelisauroid theropods from the Cretaceous Kem Kem Beds (Morocco) and a study on the phylogenetic affinities of these fossils is published online by Smyth et al. (2019).{{cite journal |author1=Robert S.H. Smyth |author2=Nizar Ibrahim |author3=Alexander Kao |author4=David M. Martill |year=2020 |title=Abelisauroid cervical vertebrae from the Cretaceous Kem Kem beds of Southern Morocco and a review of Kem Kem abelisauroids |journal=Cretaceous Research |volume=108 |pages=Article 104330 |doi=10.1016/j.cretres.2019.104330 |bibcode=2020CrRes.10804330S |s2cid=214136033 }}
• Partially preserved ilium of an indeterminate abelisaur theropod is reported from the Upper Cretaceous Kem Kem Beds (Morocco) by Zitouni et al. (2019);{{Cite journal|author1=Slimane Zitouni |author2=Christian Laurent |author3=Gareth Dyke |author4=Nour-Eddine Jalil |year=2019 |title=An abelisaurid (Dinosauria: Theropoda) ilium from the Upper Cretaceous (Cenomanian) of the Kem Kem beds, Morocco |journal=PLOS ONE |volume=14 |issue=4 |pages=e0214055 |doi=10.1371/journal.pone.0214055 |pmid=30939139 |pmc=6445567 |bibcode=2019PLoSO..1414055Z |doi-access=free }} however Smyth et al. (2019) reinterpret this specimen as a fossil of Spinosaurus aegyptiacus, while Samathi (2024) reinterprets this bone as a fossil of a spinosaurine spinosaurid of uncertain generic placement, possibly distinct from S. aegyptiacus.{{Cite journal|last=Adun Samathi |year=2024 |title=Reassessment of a theropod ilium from the Kem Kem beds of Morocco and the evolution of ilia in Spinosauridae |journal=Cretaceous Research |volume=166 |at=106007 |doi=10.1016/j.cretres.2024.106007 }}
• A study on the anatomy of the brain, braincase and inner ear of Carnotaurus sastrei is published by Cerroni & Paulina-Carabajal (2019).{{cite journal |author1=Mauricio A. Cerroni |author2=Ariana Paulina-Carabajal |year=2019 |title=Novel information on the endocranial morphology of the abelisaurid theropod Carnotaurus sastrei |journal=Comptes Rendus Palevol |volume=18 |issue=8 |pages=985–995 |doi=10.1016/j.crpv.2019.09.005 |bibcode=2019CRPal..18..985C |doi-access=free }}
• A study on the phylogenetic affinities of a tooth previously considered to be part of the holotype of Aerosteon riocoloradensis is published online by Hendrickx, Tschopp & Ezcurra (2019), who consider this fossil to be an abelisaurid tooth.{{Cite journal|author1=Christophe Hendrickx |author2=Emanuel Tschopp |author3=Martín d. Ezcurra |year=2020 |title=Taxonomic identification of isolated theropod teeth: the case of the shed tooth crown associated with Aerosteon (Theropoda: Megaraptora) and the dentition of Abelisauridae |journal=Cretaceous Research |volume=108 |pages=Article 104312 |doi=10.1016/j.cretres.2019.104312 |bibcode=2020CrRes.10804312H |s2cid=210268523 }}
• Megalosaurid teeth resembling teeth of Torvosaurus are described from the Upper Jurassic of Uruguay and Tanzania by Soto, Toriño & Perea (2019).{{cite journal |author1=Matías Soto |author2=Pablo Toriño |author3=Daniel Perea |year=2020 |title=A large sized megalosaurid (Theropoda, Tetanurae) from the late Jurassic of Uruguay and Tanzania |journal=Journal of South American Earth Sciences |volume=98 |pages=Article 102458 |doi=10.1016/j.jsames.2019.102458 |bibcode=2020JSAES..9802458S |s2cid=213672502 }}
• Isolated spinosaurid teeth are described from the Lower Cretaceous of Kut Island (Thailand) by Buffetaut et al. (2019).{{Cite journal|author1=Eric Buffetaut |author2=Suravech Suteethorn |author3=Varavudh Suteethorn |author4=Haiyan Tong |author5=Kamonrak Wongko |year=2019 |title=Spinosaurid teeth from the Lower Cretaceous of Ko Kut, eastern Thailand |journal=Annales de Paléontologie |volume=105 |issue=3 |pages=239–243 |doi=10.1016/j.annpal.2019.03.006 |bibcode=2019AnPal.105..239B |s2cid=146225359 |url=https://hal.science/hal-03488796v1/file/S0753396919300187.pdf }}
• New spinosaurid specimens are described from the Kem Kem Beds (Morocco) by Arden et al. (2019), who interpret these specimens as providing evidence of aquatic adaptations in the skulls of spinosaurids, and name a new clade Spinosaurini;{{cite journal |author1=Thomas M.S. Arden |author2=Catherine G. Klein |author3=Samir Zouhri |author4=Nicholas R. Longrich |year=2019 |title=Aquatic adaptation in the skull of carnivorous dinosaurs (Theropoda: Spinosauridae) and the evolution of aquatic habits in spinosaurids |journal=Cretaceous Research |volume=93 |pages=275–284 |doi=10.1016/j.cretres.2018.06.013 |bibcode=2019CrRes..93..275A |s2cid=134735938 }} the study is subsequently criticized by Hone & Holtz (2019).{{cite journal |author1=David William Elliott Hone |author2=Thomas Richard Holtz Jnr |year=2019 |title=Comment on: Aquatic adaptation in the skull of carnivorous dinosaurs (Theropoda: Spinosauridae) and the evolution of aquatic habits in spinosaurids. 93: 275-284 |journal=Cretaceous Research |volume=134 |pages= 104152|doi=10.1016/j.cretres.2019.05.010 |hdl=1903/28567 |s2cid=189987679 |url=https://qmro.qmul.ac.uk/xmlui/handle/123456789/60705 |hdl-access=free }}
• New fossil material of juvenile spinosaurids is described from the Kem Kem Beds by Lakin & Longrich (2019).{{cite journal |author1=Rebecca J. Lakin |author2=Nicholas R. Longrich |year=2019 |title=Juvenile spinosaurs (Theropoda: Spinosauridae) from the middle Cretaceous of Morocco and implications for spinosaur ecology |journal=Cretaceous Research |volume=93 |pages=129–142 |doi=10.1016/j.cretres.2018.09.012 |bibcode=2019CrRes..93..129L |doi-access=free }}
• New theropod fossils, including partial tail vertebra of a member of Megaraptora and an association of tail vertebrae and pelvic elements displaying a combination of characteristics that are present in megaraptorid and carcharodontosaurid theropods, are described from the early Late Cretaceous Griman Creek Formation at Lightning Ridge, New South Wales (Australia) by Brougham, Smith & Bell (2019).{{cite journal |author1=Tom Brougham |author2=Elizabeth T. Smith |author3=Phil R. Bell |year=2019 |title=New theropod (Tetanurae: Avetheropoda) material from the 'mid'-Cretaceous Griman Greek Formation at Lightning Ridge, New South Wales, Australia |journal=Royal Society Open Science |volume=6 |issue=1 |pages=Article ID 180826 |doi=10.1098/rsos.180826 |pmid=30800346 |pmc=6366187 |bibcode=2019RSOS....680826B }}
• Partial postcranial skeleton of a probable carcharodontosaurian theropod is described from the Upper Jurassic (Tithonian) Freixial Formation (Portugal) by Malafaia et al. (2019).{{Cite journal|author1=Elisabete Malafaia |author2=Pedro Mocho |author3=Fernando Escaso |author4=Pedro Dantas |author5=Francisco Ortega |year=2019 |title=Carcharodontosaurian remains (Dinosauria, Theropoda) from the Upper Jurassic of Portugal |journal=Journal of Paleontology |volume=93 |issue=1 |pages=157–172 |doi=10.1017/jpa.2018.47 |bibcode=2019JPal...93..157M |s2cid=134139008 |doi-access=free }}
• Description of the anatomy of the axial skeleton of Concavenator corcovatus is published by Cuesta, Ortega & Sanz (2019).{{cite journal |author1=Elena Cuesta |author2=Francisco Ortega |author3=José L. Sanz |year=2019 |title=Axial osteology of Concavenator corcovatus (Theropoda; Carcharodontosauria) from the Lower Cretaceous of Spain |journal=Cretaceous Research |volume=95 |pages=106–120 |doi=10.1016/j.cretres.2018.10.026 |bibcode=2019CrRes..95..106C |s2cid=241596434 }}
• A study on the anatomy of the brain and inner ear of Giganotosaurus carolinii is published online by Paulina-Carabajal & Nieto (2019).{{cite journal |author1=Ariana Paulina-Carabajal |author2=Mauro N. Nieto |year=2020 |title=Brief comment on the brain and inner ear of Giganotosaurus carolinii (Dinosauria: Theropoda) based on CT scans |journal=Ameghiniana |volume=57 |issue=1 |pages=58–62 |doi=10.5710/AMGH.25.10.2019.3237 |s2cid=210261759 }}
• A study on the anatomy of Murusraptor barrosaensis, and on its implications for inferring the phylogenetic placement of megaraptorans within Theropoda, is published by Rolando, Novas & Agnolín (2019).{{cite journal |author1=Alexis M. Aranciaga Rolando |author2=Fernando E. Novas |author3=Federico L. Agnolín |year=2019 |title=A reanalysis of Murusraptor barrosaensis Coria & Currie (2016) affords new evidence about the phylogenetical relationships of Megaraptora |journal=Cretaceous Research |volume=99 |pages=104–127 |doi=10.1016/j.cretres.2019.02.021 |bibcode=2019CrRes..99..104A |s2cid=134503923 }}
• New fossil material of a megaraptorid belonging or related to the species Australovenator wintonensis is described from the Lower Cretaceous (Albian) Eric the Red West site (Eumeralla Formation; Victoria, Australia) by Poropat et al. (2019).{{cite journal |author1=Stephen F. Poropat |author2=Matt A. White |author3=Patricia Vickers-Rich |author4=Thomas H. Rich |year=2019 |title=New megaraptorid (Dinosauria: Theropoda) remains from the Lower Cretaceous Eumeralla Formation of Cape Otway, Victoria, Australia |journal=Journal of Vertebrate Paleontology |volume=39 |issue=4 |pages=e1666273 |doi=10.1080/02724634.2019.1666273 |bibcode=2019JVPal..39E6273P |s2cid=208603798 |url=https://figshare.com/articles/journal_contribution/9963197 }}
• A study comparing different methods of assessing morphological diversity of coelurosaurian mandibles is published online by Schaeffer et al. (2019).{{Cite journal|author1=Joep Schaeffer |author2=Michael J. Benton |author3=Emily J. Rayfield |author4=Thomas L. Stubbs |year=2019 |title=Morphological disparity in theropod jaws: comparing discrete characters and geometric morphometrics |journal=Palaeontology |volume=63 |issue=2 |pages=283–299 |doi=10.1111/pala.12455 |doi-access=free |hdl=1983/cd19be5a-92e0-4e55-9d13-b8d7369c3cc2 |hdl-access=free }}
• A study on the anatomy of the skull of Bicentenaria argentina is published online by Aranciaga-Rolando, Cerroni & Novas (2019).{{cite journal |author1=Lexis M. Aranciaga-Rolando |author2=Mauricio A. Cerroni |author3=Fernando E. Novas |year=2019 |title=Skull anatomy and pneumaticity of the enigmatic coelurosaurian theropod Bicentenaria argentina Novas et al. (2012) |journal=The Anatomical Record |volume=303 |issue=7 |pages=1884–1900 |doi=10.1002/ar.24288 |pmid=31595689 |s2cid=203983329 |doi-access=free }}
• New postcranial bones of Kileskus aristotocus, providing new information on the anatomy of this species, are described from the Middle Jurassic (Itat Formation) Itat Formation (Russia) by Averianov et al. (2019).{{cite journal |author1=Alexander O. Averianov |author2=Anastasia Osochnikova |author3=Pavel Skutschas |author4=Sergei Krasnolutskii |author5=Rico Schellhorn |author6=Julia A. Schultz |author7=Thomas Martin |year=2019 |title=New data on the tyrannosauroid dinosaur Kileskus from the Middle Jurassic of Siberia, Russia |journal=Historical Biology: An International Journal of Paleobiology |volume=33 |issue=7 |pages=897–903 |doi=10.1080/08912963.2019.1666839 |s2cid=203890300 }}
• A study on the agility and turning capability of tyrannosaurids and other large theropods is published by Snively et al. (2019), who argue that tyrannosaurids could turn with greater agility, thus pivoting more quickly, than other large theropods, which enhanced their ability to pursue and subdue prey.{{Cite journal|author1=Eric Snively |author2=Haley O'Brien |author3=Donald M. Henderson |author4=Heinrich Mallison |author5=Lara A. Surring |author6=Michael E. Burns |author7=Thomas R. Holtz Jr |author8=Anthony P. Russell |author9=Lawrence M. Witmer |author10=Philip J. Currie |author11=Scott A. Hartman |author12=John R. Cotton |year=2019 |title=Lower rotational inertia and larger leg muscles indicate more rapid turns in tyrannosaurids than in other large theropods |journal=PeerJ |volume=7 |pages=e6432 |doi=10.7717/peerj.6432 |pmid=30809441 |pmc=6387760 |doi-access=free }}
• A study on the taxonomic identity of the tyrannosaurid specimen CMN 11315 from the lower Maastrichtian Tolman Member of the Horseshoe Canyon Formation (Alberta, Canada) is published online by Mallon et al. (2019).{{cite journal |author1=Jordan C. Mallon |author2=Jonathan R. Bura |author3=Dirk Schumann |author4=Philip J. Currie |year=2019 |title=A problematic tyrannosaurid (Dinosauria: Theropoda) skeleton and its implications for tyrannosaurid diversity in the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta |journal=The Anatomical Record |volume=303 |issue=4 |pages=673–690 |doi=10.1002/ar.24199 |pmid=31254458 |pmc=7079176 }}
• A study on the taxonomic identity of the juvenile tyrannosaurid specimen TMP 1994.143.1, formerly assigned to the genus Daspletosaurus, is published by Voris et al., who reinterpret this specimen as belonging to the species Gorgosaurus libratus, and describe a new postorbital from the Dinosaur Park Formation (Alberta, Canada) belonging to a small juvenile Daspletosaurus.{{Cite journal|author1=Jared T. Voris |author2=Darla K. Zelenitsky |author3=François Therrien |author4=Philip J. Currie |year=2019 |title=Reassessment of a juvenile Daspletosaurus from the Late Cretaceous of Alberta, Canada with implications for the identification of immature tyrannosaurids |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 17801 |doi=10.1038/s41598-019-53591-7 |pmid=31780682 |pmc=6882908 |bibcode=2019NatSR...917801V }}
• A study on the tooth replacement patterns in tyrannosaurid theropods, as indicated by data from a juvenile specimen of Tarbosaurus bataar, is published by Hanai & Tsuihiji (2019).{{Cite journal|author1=Tomoya Hanai |author2=Takanobu Tsuihiji |year=2019 |title=Description of tooth ontogeny and replacement patterns in a juvenile Tarbosaurus bataar (Dinosauria: Theropoda) using CT-scan data |journal=The Anatomical Record |volume=302 |issue=7 |pages=1210–1225 |doi=10.1002/ar.24014 |pmid=30378771 |s2cid=53109996 |doi-access=free }}
• A study on teeth of Tarbosaurus bataar and its potential prey species from the Nemegt Formation (Mongolia), aiming to infer the diet of this dinosaur and seasonal climatic variations in the area of Mongolia in the early Maastrichtian on the basis of stable isotope data from tooth enamel, is published online by Owocki et al. (2019).{{Cite journal|author1=Krzysztof Owocki |author2=Barbara Kremer |author3=Martin Cotte |author4=Hervé Bocherens |year=2020 |title=Diet preferences and climate inferred from oxygen and carbon isotopes of tooth enamel of Tarbosaurus bataar (Nemegt Formation, Upper Cretaceous, Mongolia) |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=537 |pages=Article 109190|doi=10.1016/j.palaeo.2019.05.012 |bibcode=2020PPP...53709190O |s2cid=182937778 }}
• A study on the complexity and modularity of the skull of Tyrannosaurus rex is published by Werneburg et al. (2019).{{Cite journal|author1=Ingmar Werneburg |author2=Borja Esteve-Altava |author3=Joana Bruno |author4=Marta Torres Ladeira |author5=Rui Diogo |year=2019 |title=Unique skull network complexity of Tyrannosaurus rex among land vertebrates |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 1520 |doi=10.1038/s41598-018-37976-8 |pmid=30728455 |pmc=6365547 |bibcode=2019NatSR...9.1520W }}
• Traces preserved on a tail vertebra of a hadrosaurid dinosaur from the Upper Cretaceous Hell Creek Formation (Montana, United States) are described by Peterson & Daus (2019), who interpret their finding as feeding traces produced by a late-stage juvenile Tyrannosaurus rex.{{Cite journal|author1=Joseph E. Peterson |author2=Karsen N. Daus |year=2019 |title=Feeding traces attributable to juvenile Tyrannosaurus rex offer insight into ontogenetic dietary trends |journal=PeerJ |volume=7 |pages=e6573 |doi=10.7717/peerj.6573 |pmid=30863686 |pmc=6404657 |doi-access=free }}
• A large specimen of Tyrannosaurus rex (RSM P2523.8) with an estimated body mass exceeding other known T. rex specimens and representatives of all other gigantic terrestrial theropods is described by Persons, Currie & Erickson (2019).{{Cite journal|author1=W. Scott Persons IV |author2=Philip J. Currie |author3=Gregory M. Erickson |year=2019 |title=An older and exceptionally large adult specimen of Tyrannosaurus rex |journal=The Anatomical Record |volume=303 |issue=4 |pages=656–672 |doi=10.1002/ar.24118 |pmid=30897281 |s2cid=85448862 |doi-access=free }}
• A study testing the biomechanical performance of the skull of Tyrannosaurus rex is published online by Cost et al. (2019).{{cite journal |author1=Ian N. Cost |author2=Kevin M. Middleton |author3=Kaleb C. Sellers |author4=M. Scott Echols |author5=Lawrence M. Witmer |author6=Julian L. Davis |author7=Casey M. Holliday |year=2019 |title=Palatal biomechanics and its significance for cranial kinesis in Tyrannosaurus rex |journal=The Anatomical Record |volume=303 |issue=4 |pages=999–1017 |doi=10.1002/ar.24219 |pmid=31260190 |s2cid=195757498 |doi-access=free }}
• A study on tooth replacement in a well-preserved skull of Tyrannosaurus rex from the Maastrichtian Hell Creek Formation (Montana, United States) is published online by Sattler & Schwarz (2019).{{Cite journal|author1=Franziska Sattler |author2=Daniela Schwarz |year=2019 |title=Tooth replacement in a specimen of Tyrannosaurus rex (Dinosauria, Theropoda) from the Hell Creek Formation (Maastrichtian), Montana |journal=Historical Biology: An International Journal of Paleobiology |volume=33 |issue=7 |pages=949–972 |doi=10.1080/08912963.2019.1675052 |s2cid=208562234 }}
• A study aiming to determine the processes contributing to the preservation of soft tissue structures and proteins of Tyrannosaurus rex is published by Boatman et al. (2019).{{Cite journal|author1=Elizabeth M. Boatman |author2=Mark B. Goodwin |author3=Hoi-Ying N. Holman |author4=Sirine Fakra |author5=Wenxia Zheng |author6=Ronald Gronsky |author7=Mary H. Schweitzer |year=2019 |title=Mechanisms of soft tissue and protein preservation in Tyrannosaurus rex |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 15678 |doi=10.1038/s41598-019-51680-1 |pmid=31666554 |pmc=6821828 |bibcode=2019NatSR...915678B }}
• Teeth on a (probably non-tyrannosaurid) tyrannosauroid and a dromaeosaurid are described from the Maastrichtian Mount Laurel Formation (New Jersey, United States) by Brownstein (2019).{{cite journal |author=Chase Doran Brownstein |year=2019 |title=New records of theropods from the latest Cretaceous of New Jersey and the Maastrichtian Appalachian fauna |journal=Royal Society Open Science |volume=6 |issue=11 |pages=Article ID 191206 |doi=10.1098/rsos.191206 |pmid=31827856 |pmc=6894593 |bibcode=2019RSOS....691206B }}
• Description of an ornithomimid specimen UALVP 16182, putatively assigned to the genus Dromiceiomimus, and a study on the validity of this genus is published by Macdonald & Currie (2019).{{Cite journal|author1=Ian Macdonald |author2=Philip J. Currie |year=2019 |title=Description of a partial Dromiceiomimus (Dinosauria: Theropoda) skeleton with comments on the validity of the genus |journal=Canadian Journal of Earth Sciences |volume=56 |issue=2 |pages=129–157 |doi=10.1139/cjes-2018-0162 |bibcode=2019CaJES..56..129M |s2cid=134730129 }}
• A study on the morphometrics of teeth of Richardoestesia asiatica from the Upper Cretaceous Khodzhakul, Bissekty and Aitym formations of Uzbekistan is published by Averianov & Sues (2019).{{cite journal |author1=Alexander Averianov |author2=Hans-Dieter Sues |year=2019 |title=Morphometric analysis of the teeth and taxonomy of the enigmatic theropod Richardoestesia from the Upper Cretaceous of Uzbekistan |journal=Journal of Vertebrate Paleontology |volume=39 |issue=3 |pages=e1614941 |doi=10.1080/02724634.2019.1614941 |bibcode=2019JVPal..39E4941A |s2cid=199061940 }}
• A study on the bone histology of a metatarsal bone of the holotype specimen of Xixianykus zhangi is published by Qin, Zhao & Xu (2019).{{Cite journal|author1=Zi-Chuan Qin |author2=Qi Zhao |author3=Xing Xu |year=2019 |title=Metatarsal II osteohistology of Xixianykus zhangi (Theropoda: Alvarezsauria) and its implications for the development of the arctometatarsalian pes |journal=Vertebrata PalAsiatica |volume=57 |issue=3 |pages=205–213 |doi=10.19615/j.cnki.1000-3118.190425 }}
• A study on the anatomy of the skull of Beipiaosaurus inexpectus is published by Liao & Xu (2019).{{Cite journal|author1=Chun-Chi Liao |author2=Xing Xu |year=2019 |title=Cranial osteology of Beipiaosaurus inexpectus (Theropoda: Therizinosauria) |journal=Vertebrata PalAsiatica |volume=57 |issue=2 |pages=117–132 |doi=10.19615/j.cnki.1000-3118.190115 }}
• A study on form, function and evolution of skulls of members of Oviraptorosauria is published online by Ma et al. (2019).{{Cite journal|author1=Waisum Ma |author2=Stephen L. Brusatte |author3=Junchang Lü |author4=Manabu Sakamoto |year=2020 |title=The skull evolution of oviraptorosaurian dinosaurs: the role of niche-partitioning in diversification |journal=Journal of Evolutionary Biology |volume=33 |issue= 2|pages= 178–188|doi=10.1111/jeb.13557 |pmid=31622509 |s2cid=204773776 |url=http://centaur.reading.ac.uk/87084/1/Ma_et_al-2019-Journal_of_Evolutionary_Biology.pdf }}
• A study on the wing performance of Caudipteryx is published by Talori et al. (2019).{{Cite journal|author1=Yaser Saffar Talori |author2=Jing-Shan Zhao |author3=Yun-Fei Liu |author4=Wen-Xiu Lu |author5=Zhi-Heng Li |author6=Jingmai Kathleen O'Connor |year=2019 |title=Identification of avian flapping motion from non-volant winged dinosaurs based on modal effective mass analysis |journal=PLOS Computational Biology |volume=15 |issue=5 |pages=e1006846 |doi=10.1371/journal.pcbi.1006846 |pmid=31048911 |pmc=6497222 |bibcode=2019PLSCB..15E6846T |doi-access=free }}
• A study on the aerodynamic capacity of feathered forelimbs of Caudipteryx is published by Talori & Zhao (2019).{{cite book |author1=Yaser Saffar Talori |author2=Jing-Shan Zhao |year=2019 |chapter=Aerodynamics of soft flapping wings of Caudipteryx |editor1=Haibin Yu |editor2=Jinguo Liu |editor3=Lianqing Liu |editor4=Zhaojie Ju |editor5=Yuwang Liu |editor6=Dalin Zhou |title=Intelligent Robotics and Applications. 12th International Conference, ICIRA 2019, Shenyang, China, August 8–11, 2019, Proceedings, Part III |publisher=Springer |pages=155–170 |isbn=978-3-030-27534-1 |doi=10.1007/978-3-030-27535-8_15 |s2cid=199435644 }}
• Description of an avimimid bonebed assemblage from the Iren Dabasu Formation of northern China, providing new information on the growth of avimimids, is published by Funston et al. (2019).{{Cite journal|author1=G. F. Funston |author2=P. J. Currie |author3=M. J. Ryan |author4=Z.-M. Dong |year=2019 |title=Birdlike growth and mixed-age flocks in avimimids (Theropoda, Oviraptorosauria) |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 18816 |doi=10.1038/s41598-019-55038-5 |pmid=31827127 |pmc=6906459 |bibcode=2019NatSR...918816F }}
• Description of new caenagnathid mandibles from the Dinosaur Park Formation (Alberta, Canada) and a study on their histology is published online by Funston et al. (2019).{{Cite journal|author1=Gregory F. Funston |author2=Ryan D. Wilkinson |author3=D. Jade Simon |author4=Aaron H. Leblanc |author5=Mateusz Wosik |author6=Philip J. Currie |year=2019 |title=Histology of caenagnathid (Theropoda, Oviraptorosauria) dentaries and implications for development, ontogenetic edentulism, and taxonomy |journal=The Anatomical Record |volume=303 |issue=4 |pages=918–934 |doi=10.1002/ar.24205 |pmid=31270950 |s2cid=195797251 |doi-access=free }}
• A reconstruction of the architecture of the oviraptorid egg clutch, based on data from five clutches from the Upper Cretaceous Nanxiong Group (Jiangxi, China) is presented by Yang et al. (2019), who re-evaluate the hypothesis of thermoregulatory contact incubation of eggs as an explanation for the discoveries of associations of adult oviraptorosaurs with egg clutches.{{Cite journal|author1=Tzu-Ruei Yang |author2=Jasmina Wiemann |author3=Li Xu |author4=Yen-Nien Cheng |author5=Xiao-Chun Wu |author6=P. Martin Sander |year=2019 |title=Reconstruction of oviraptorid clutches illuminates their unique nesting biology |journal=Acta Palaeontologica Polonica |volume=64 |issue=3 |pages=581–596 |doi=10.4202/app.00497.2018 |doi-access=free }}
• A study on the reproductive biology of oviraptorids, based on data from a partial clutch of eggs from the Upper Cretaceous Nanxiong Group, is published online by Yang et al. (2019).{{Cite journal|author1=Tzu-Ruei Yang |author2=Thomas Engler |author3=Jens N. Lallensack |author4=Adun Samathi |author5=Malgorzata Makowska |author6=Burkhard Schillinger |year=2019 |title=Hatching asynchrony in oviraptorid dinosaurs sheds light on their unique nesting biology |journal=Integrative Organismal Biology |volume=1 |issue=1 |pages=obz030 |doi=10.1093/iob/obz030 |pmid=33791544 |pmc=7671163 |doi-access=free }}
• A study on the function of the enlarged "sickle claw" on the second toe of dromaeosaurid theropods is published by Bishop (2019).{{Cite journal|author=Peter J. Bishop |year=2019 |title=Testing the function of dromaeosaurid (Dinosauria, Theropoda) 'sickle claws' through musculoskeletal modelling and optimization |journal=PeerJ |volume=7 |pages=e7577 |doi=10.7717/peerj.7577 |pmid=31523517 |pmc=6717499 |doi-access=free }}
• An ungual phalanx of a dromaeosaurid theropod is described from the Blagoveshchensk area (Russia) by Bolotskii, Bolotskii & Sorokin (2019).{{Cite journal|author1=I. Yu. Bolotskii |author2=Yu. L. Bolotskii |author3=A. P. Sorokin |year=2019 |title=The first find of an ungual phalanx of a dromaeosaurid dinosaur (Dinosauria: Dromaeosauridae) from the Blagoveshchensk area of Late Cretaceous dinosaurs (Amur Region, Russia) |journal=Doklady Earth Sciences |volume=484 |issue=1 |pages=18–20 |doi=10.1134/S1028334X19010100 |bibcode=2019DokES.484...18B |s2cid=134803475 }}
• A study on the anatomy, taphonomy, environmental setting and phylogenetic position of Halszkaraptor escuilliei is published by Brownstein (2019);{{Cite journal|author=Chase D. Brownstein |year=2019 |title=Halszkaraptor escuilliei and the evolution of the paravian bauplan |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 16455 |doi=10.1038/s41598-019-52867-2 |pmid=31712644 |pmc=6848195 |bibcode=2019NatSR...916455B }} the study is subsequently criticized by Cau (2020).{{Cite journal|author=Andrea Cau |year=2020 |title=The body plan of Halszkaraptor escuilliei (Dinosauria, Theropoda) is not a transitional form along the evolution of dromaeosaurid hypercarnivory |journal=PeerJ |volume=8 |pages=e8672 |doi=10.7717/peerj.8672 |pmid=32140312 |pmc=7047864 |doi-access=free }}
• A study on a fossil lizard found in the abdomen of a specimen of Microraptor zhaoianus from the Lower Cretaceous Jiufotang Formation (China), evaluating its implications for the knowledge of dromaeosaurid digestion, is published by O'Connor et al. (2019).{{Cite journal|author1=Jingmai O'Connor |author2=Xiaoting Zheng |author3=Liping Dong |author4=Xiaoli Wang |author5=Yan Wang |author6=Xiaomei Zhang |author7=Zhonghe Zhou |year=2019 |title=Microraptor with ingested lizard suggests non-specialized digestive function |journal=Current Biology |volume=29 |issue=14 |pages=2423–2429.e2 |doi=10.1016/j.cub.2019.06.020 |pmid=31303494 |s2cid=195887207 |doi-access=free |bibcode=2019CBio...29E2423O }}
• Description of the anatomy of the skull of Saurornitholestes langstoni, based on data from an almost complete skeleton from the Campanian Dinosaur Park Formation (Alberta, Canada), is published online by Currie & Evans (2019).{{Cite journal|author1=Philip J. Currie |author2=David C. Evans |year=2019 |title=Cranial anatomy of new specimens of Saurornitholestes langstoni (Dinosauria, Theropoda, Dromaeosauridae) from the Dinosaur Park Formation (Campanian) of Alberta |journal=The Anatomical Record |volume=303 |issue=4 |pages=691–715 |doi=10.1002/ar.24241 |pmid=31497925 |s2cid=202002676 |doi-access=free }}
• Histological analysis of the forelimb bones of Daliansaurus liaoningensis is presented by Shen et al. (2019).{{Cite journal|author1=Caizhi Shen |author2=Junchang Lü |author3=Chunling Gao |author4=Masato Hoshino |author5=Kentaro Uesugi |author6=Martin Kundrát |year=2019 |title=Forearm bone histology of the small theropod Daliansaurus liaoningensis (Paraves: Troodontidae) from the Yixian Formation, Liaoning, China |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=2 |pages=253–261 |doi=10.1080/08912963.2017.1360296 |bibcode=2019HBio...31..253S |s2cid=134050997 }}
• Evidence indicating that the pennaceous feathers of Anchiornis were composed of both feather β-keratins and α-keratins is presented by Pan et al. (2019);{{Cite journal|author1=Yanhong Pan |author2=Wenxia Zheng |author3=Roger H. Sawyer |author4=Michael W. Pennington |author5=Xiaoting Zheng |author6=Xiaoli Wang |author7=Min Wang |author8=Liang Hu |author9=Jingmai O'Connor |author10=Tao Zhao |author11=Zhiheng Li |author12=Elena R. Schroeter |author13=Feixiang Wu |author14=Xing Xu |author15=Zhonghe Zhou |author16=Mary H. Schweitzer |year=2019 |title=The molecular evolution of feathers with direct evidence from fossils |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=116 |issue=8 |pages=3018–3023 |doi=10.1073/pnas.1815703116 |pmid=30692253 |pmc=6386655 |bibcode=2019PNAS..116.3018P |doi-access=free }} the study is subsequently criticized by Saitta & Vinther (2019).{{cite journal |author1=Evan T. Saitta |author2=Jakob Vinther |year=2019 |title=A perspective on the evidence for keratin protein preservation in fossils: An issue of replication versus validation |journal=Palaeontologia Electronica |volume=22 |issue=3 |pages=Article number 22.3.2E |doi=10.26879/1017E |s2cid=213903998 |doi-access=free }}
• Isolated theropod teeth, interpreted as most likely representing at least two species, are described from the Middle Jurassic Valtos Sandstone and Lealt Shale Formations of Skye (Scotland) by Young et al. (2019).{{Cite journal|author1=Chloe M. E. Young |author2=Christophe Hendrickx |author3=Thomas J. Challands |author4=Davide Foffa |author5=Dugald A. Ross |author6=Ian B. Butler |author7=Stephen L. Brusatte |year=2019 |title=New theropod dinosaur teeth from the Middle Jurassic of the Isle of Skye, Scotland |journal=Scottish Journal of Geology |volume=55 |issue=1 |pages=7–19 |doi=10.1144/sjg2018-020 |bibcode=2019ScJG...55....7Y |hdl=20.500.11820/063549bc-2a00-4ddc-bcf6-a1bc2f872c26 |s2cid=134102042 |url=https://www.pure.ed.ac.uk/ws/files/81492545/81492494._Brusatte._AAM.pdf }}

• A study aiming to explain high diversity of early evolutionary branches of sauropodomorph dinosaurs is published online by Müller & Garcia (2019).{{cite journal |author1=Rodrigo T. Müller |author2=Maurício S. Garcia |year=2019 |title=Rise of an empire: analysing the high diversity of the earliest sauropodomorph dinosaurs through distinct hypotheses |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=10 |pages=1334–1339 |doi=10.1080/08912963.2019.1587754 |s2cid=92177386 }}
• A study on the anatomy and phylogenetic relationships of Pampadromaeus barberenai is published by Langer et al. (2019).{{Cite journal|author1=Max Cardoso Langer |author2=Blair Wayne McPhee |author3=Júlio César de Almeida Marsola |author4=Lúcio Roberto-da-Silva |author5=Sérgio Furtado Cabreira |year=2019 |title=Anatomy of the dinosaur Pampadromaeus barberenai (Saurischia—Sauropodomorpha) from the Late Triassic Santa Maria Formation of southern Brazil |journal=PLOS ONE |volume=14 |issue=2 |pages=e0212543 |doi=10.1371/journal.pone.0212543 |pmid=30785940 |pmc=6382151 |bibcode=2019PLoSO..1412543L |doi-access=free }}
• A dinosauriform femur, possibly of a juvenile specimen of the species Pampadromaeus barberenai, is described from the Late Triassic of southern Brazil by Müller et al. (2019).{{Cite journal|author1=Rodrigo Temp Müller |author2=Max Cardoso Langer |author3=Cristian Pereira Pacheco |author4=Sérgio Dias-da-Silva |year=2019 |title=The role of ontogeny on character polarization in early dinosaurs: a new specimen from the Late Triassic of southern Brazil and its implications |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=6 |pages=794–805 |doi=10.1080/08912963.2017.1395421 |bibcode=2019HBio...31..794M |s2cid=90276036 }}
• A study on the anatomy of the braincase of Saturnalia tupiniquim is published by Bronzati, Langer & Rauhut (2019).{{Cite journal|author1=Mario Bronzati |author2=Max C. Langer |author3=Oliver W. M. Rauhut |year=2019 |title=Braincase anatomy of the early sauropodomorph Saturnalia tupiniquim (Late Triassic, Brazil) |journal=Journal of Vertebrate Paleontology |volume=38 |issue=5 |pages=e1559173 |doi=10.1080/02724634.2018.1559173 |s2cid=108597134 }}
• Description of all available skull bones of Saturnalia tupiniquim except the braincase, evaluating the implications of this taxon for the knowledge of the early evolution of the sauropodomorph feeding behaviour, is published by Bronzati, Müller & Langer (2019).{{Cite journal|author1=Mario Bronzati |author2=Rodrigo T. Müller |author3=Max C. Langer |year=2019 |title=Skull remains of the dinosaur Saturnalia tupiniquim (Late Triassic, Brazil): With comments on the early evolution of sauropodomorph feeding behaviour |journal=PLOS ONE |volume=14 |issue=9 |pages=e0221387 |doi=10.1371/journal.pone.0221387 |pmid=31490962 |pmc=6730896 |bibcode=2019PLoSO..1421387B |doi-access=free }}
• A study on the phylogenetic relationships of Unaysaurus tolentinoi is published online by McPhee et al. (2019).{{cite journal |author1=Blair W. McPhee |author2=Jonathas S. Bittencourt |author3=Max C. Langer |author4=Cecilia Apaldetti |author5=Átila A. S. Da Rosa |year=2019 |title=Reassessment of Unaysaurus tolentinoi (Dinosauria: Sauropodomorpha) from the Late Triassic (early Norian) of Brazil, with a consideration of the evidence for monophyly within non-sauropodan sauropodomorphs |journal=Journal of Systematic Palaeontology |volume=18 |issue=3 |pages=259–293 |doi=10.1080/14772019.2019.1602856 |s2cid=182843217 }}
• A study on the anatomy of the skull of Macrocollum itaquii and on the phylogenetic relationships of this species is published online by Müller (2019).{{Cite journal|author=Rodrigo Temp Müller |year=2019 |title=Craniomandibular osteology of Macrocollum itaquii (Dinosauria: Sauropodomorpha) from the Late Triassic of southern Brazil |journal=Journal of Systematic Palaeontology |volume=18 |issue=10 |pages=805–841 |doi=10.1080/14772019.2019.1683902 |s2cid=209575985 }}
• A study on the bony labyrinth scale and geometry through ontogeny in Massospondylus carinatus, evaluating whether the putative gait change from quadrupedal juvenile to bipedal adult is reflected in labyrinth morphology, will be published by Neenan et al. (2019).{{cite journal |author1=James M. Neenan |author2=Kimberley E. J. Chapelle |author3=Vincent Fernandez |author4=Jonah N. Choiniere |year=2019 |title=Ontogeny of the Massospondylus labyrinth: implications for locomotory shifts in a basal sauropodomorph dinosaur |journal=Palaeontology |volume=62 |issue= 2|pages= 255–265|doi=10.1111/pala.12400 |bibcode=2019Palgy..62..255N |s2cid=134012822 |url=https://ora.ox.ac.uk/objects/uuid:39e3a8df-f6c4-4b04-8368-2afe3283ca58 }}
• Description of the anatomy of the postcranial skeleton of the neotype specimen of Massospondylus carinatus is published by Barrett et al. (2019).{{Cite journal|author1=Paul M. Barrett |author2=Kimberley E.J. Chapelle |author3=Casey K. Staunton |author4=Jennifer Botha |author5=Jonah N. Choiniere |year=2019 |title=Postcranial osteology of the neotype specimen of Massospondylus carinatus Owen, 1854 (Dinosauria: Sauropodomorpha) from the upper Elliot formation of South Africa |journal=Palaeontologia Africana |volume=53 |pages=114–178 |hdl=10539/26829 }}
• Redescription of the anatomy of the skull of Jingshanosaurus xinwaensis is published online by Zhang et al. (2019), who consider Chuxiongosaurus lufengensis to be a junior synonym of J. xinwaensis.{{Cite journal|author1=Qian-Nan Zhang |author2=Tao Wang |author3=Zhi-Wen Yang |author4=Hai-Lu You |year=2019 |title=Redescription of the cranium of Jingshanosaurus xinwaensis (Dinosauria: Sauropodomorpha) from the Lower Jurassic Lufeng Formation of Yunnan Province, China |journal=The Anatomical Record |volume=303 |issue=4 |pages=759–771 |doi=10.1002/ar.24113 |pmid=30860663 |s2cid=75140305 |doi-access=free }}
• A study on the anatomy of the axial skeleton of Xingxiulong chengi is published online by Wang et al. (2019).{{cite journal |author1=Ya-Ming Wang |author2=Tao Wang |author3=Zhi-Wen Yang |author4=Hai-Lu You |year=2019 |title=Cranium and vertebral column of Xingxiulong chengi (Dinosauria: Sauropodomorpha) from the Early Jurassic of China |journal=The Anatomical Record |volume=303 |issue=4 |pages=772–789 |doi=10.1002/ar.24305 |pmid=31804026 |s2cid=208643235 |doi-access=free }}
• A study on changes of body mass and center of mass of Mussaurus patagonicus during its ontogeny, and on their potential relationship with the locomotor stance of this dinosaur, is published by Otero et al. (2019).{{Cite journal|author1=Alejandro Otero |author2=Andrew R. Cuff |author3=Vivian Allen |author4=Lauren Sumner-Rooney |author5=Diego Pol |author6=John R. Hutchinson |year=2019 |title=Ontogenetic changes in the body plan of the sauropodomorph dinosaur Mussaurus patagonicus reveal shifts of locomotor stance during growth |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 7614 |doi=10.1038/s41598-019-44037-1 |pmid=31110190 |pmc=6527699 |bibcode=2019NatSR...9.7614O }}
• A study on the leverage of forelimb muscles in the transition from the narrow-gauge stance of basal sauropods to a wide-gauge stance in titanosaurs is published by Klinkhamer et al. (2019).{{Cite journal|author1=Ada J. Klinkhamer |author2=Heinrich Mallison |author3=Stephen F. Poropat |author4=Trish Sloan |author5=Stephen Wroe |year=2019 |title=Comparative three-dimensional moment arm analysis of the sauropod forelimb: Implications for the transition to a wide-gauge stance in titanosaurs |journal=The Anatomical Record |volume=302 |issue=5 |pages=794–817 |doi=10.1002/ar.23977 |pmid=30315633 |s2cid=52977062 |doi-access=free }}
• A study on the hind foot posture and biomechanical capabilities of Rhoetosaurus brownei is published by Jannel et al. (2019).{{Cite journal|author1=Andréas Jannel |author2=Jay P. Nair |author3=Olga Panagiotopoulou |author4=Anthony Romilio |author5=Steven W. Salisbury |year=2019 |title="Keep your feet on the ground": Simulated range of motion and hind foot posture of the Middle Jurassic sauropod Rhoetosaurus brownei and its implications for sauropod biology |journal=Journal of Morphology |volume=280 |issue=6 |pages=849–878 |doi=10.1002/jmor.20989 |pmid=30964205 |s2cid=104295938 }}
• A study on the age of the fossils of Rhoetosaurus brownei is published by Todd et al. (2019).{{Cite journal|author1=Christopher N. Todd |author2=Eric M. Roberts |author3=Espen M. Knutsen |author4=Andrew C. Rozefelds |author5=Hui-Qing Huang |author6=Carl Spandler |year=2019 |title=Refined age and geological context of two of Australia's most important Jurassic vertebrate taxa (Rhoetosaurus brownei and Siderops kehli), Queensland |journal=Gondwana Research |volume=76 |pages=19–25 |doi=10.1016/j.gr.2019.05.008 |bibcode=2019GondR..76...19T |s2cid=199105458 }}
• An isolated tooth-crown of a member of Eusauropoda, possibly a member of Mamenchisauridae or Euhelopodidae, is described from the Upper Jurassic Qigu Formation (China) by Maisch & Matzke (2019), representing the first record of a eusauropod from this formation reported so far.{{Cite journal|author1=Michael W. Maisch |author2=Andreas T. Matzke |year=2019 |title=First record of a eusauropod (Dinosauria: Sauropoda) from the Upper Jurassic Qigu-Formation (southern Junggar Basin, China), and a reconsideration of Late Jurassic sauropod diversity in Xinjiang |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=291 |issue=1 |pages=109–117 |doi=10.1127/njgpa/2019/0792 |s2cid=135213577 }}
• A cervical vertebra of a member of the genus Omeisaurus is described from the Middle Jurassic Lower Member of the Shaximiao Formation (China) by Tan et al. (2019), providing new information on the skeletal morphology of this genus, and representing the easternmost occurrence of Omeisaurus reported so far.{{Cite journal|author1=Chao Tan |author2=Hui Dai |author3=Jian-Jun He |author4=Feng Zhang |author5=Xu-Feng Hu |author6=Hai-Dong Yu |author7=Ning Li |author8=Guang-Biao Wei |author9=Guang-Zhao Peng |author10=Yong Ye |author11=Qian-Nan Zhang |author12=Xin-Xin Ren |author13=Hai-Lu You |year=2019 |title=Discovery of Omeisaurus (Dinosauria: Sauropoda) in the Middle Jurassic Shaximiao Formation of Yunyang, Chongqing, China |journal=Vertebrata PalAsiatica |volume=57 |issue=2 |pages=105–116 |doi=10.19615/j.cnki.1000-3118.181115 }}
• Possible mamenchisaurid teeth are described from the Middle Jurassic Itat Formation (Russia) by Averianov et al. (2019).{{Cite journal|author1=Alexander Averianov |author2=Sergei Krasnolutskii |author3=Stepan Ivantsov |author4=Pavel Skutschas |author5=Rico Schellhorn |author6=Julia Schultz |author7=Thomas Martin |year=2019 |title=Sauropod remains from the Middle Jurassic Itat Formation of West Siberia, Russia |journal=PalZ |volume=93 |issue=4 |pages=691–701 |doi=10.1007/s12542-018-00445-8 |bibcode=2019PalZ...93..691A |s2cid=135205021 }}
• A study on the age of the fossils of members of the genus Mamenchisaurus from the Suining Formation in the Sichuan Basin (China) is published by Wang et al. (2019).{{Cite journal|author1=Jun Wang |author2=Mark A. Norell |author3=Rui Pei |author4=Yong Ye |author5=Su-Chin Chang |year=2019 |title=Surprisingly young age for the mamenchisaurid sauropods in South China |journal=Cretaceous Research |volume=104 |pages=Article 104176 |doi=10.1016/j.cretres.2019.07.006 |bibcode=2019CrRes.10404176W |s2cid=199099072 }}
• A study on the anatomy and affinities of Lapparentosaurus madagascariensis is published by Raveloson, Clark & Rasoamiaramana (2019).{{cite journal |author1=Miky Lova Tantely Raveloson |author2=Neil D. L. Clark |author3=Armand H. Rasoamiaramana |year=2019 |title=New information on the Madagascan Middle Jurassic sauropod Lapparentosaurus madagascariensis |journal=Geosciences |volume=9 |issue=12 |pages=Article 498 |doi=10.3390/geosciences9120498 |bibcode=2019Geosc...9..498R |doi-access=free }}
• Partial vertebra of a sauropod dinosaur belonging to the group Turiasauria is described from the Lower Cretaceous Wealden Supergroup (United Kingdom) by Mannion (2019).{{Cite journal|author=Philip D. Mannion |year=2019 |title=A turiasaurian sauropod dinosaur from the Early Cretaceous Wealden Supergroup of the United Kingdom |journal=PeerJ |volume=7 |pages=e6348 |doi=10.7717/peerj.6348 |pmid=30697494 |pmc=6348093 |doi-access=free }}
• Description and a study on the affinities of sauropod teeth from the Middle Jurassic (Bathonian) Sakahara Formation (Madagascar) is published online by Bindellini & Dal Sasso (2019), who report evidence of presence of Titanosauriformes in the Bathonian.{{Cite journal|author1=Gabriele Bindellini |author2=Cristiano Dal Sasso |year=2019 |title=Sauropod teeth from the Middle Jurassic of Madagascar, and the oldest record of Titanosauriformes |journal=Papers in Palaeontology |volume=7 |issue=1 |pages=137–161 |doi=10.1002/spp2.1282 |s2cid=203376597 }}
• Description of isolated sauropod vertebrae from the Oxford Clay Formation (United Kingdom), indicative of a higher sauropod biodiversity in this formation than previously recognised, is published by Holwerda, Evans & Liston (2019).{{Cite journal|author1=Femke M. Holwerda |author2=Mark Evans |author3=Jeff J. Liston |year=2019 |title=Additional sauropod dinosaur material from the Callovian Oxford Clay Formation, Peterborough, UK: evidence for higher sauropod diversity |journal=PeerJ |volume=7 |pages=e6404 |doi=10.7717/peerj.6404 |pmid=30783572 |pmc=6378091 |doi-access=free }}
• Revision of the taxonomic diversity of sauropod dinosaurs from a historic Carnegie Museum locality (Red Fork of the Powder River Quarry B) in northern Wyoming (Morrison Formation) is published by Tschopp et al. (2019).{{Cite journal|author1=Emanuel Tschopp |author2=Susannah C.R. Maidment |author3=Matthew C. Lamanna |author4=Mark A. Norell |year=2019 |title=Reassessment of a historical collection of sauropod dinosaurs from the northern Morrison Formation of Wyoming, with implications for sauropod biogeography |journal=Bulletin of the American Museum of Natural History |volume=2019 |issue=437 |pages=1–79 |doi=10.1206/0003-0090.437.1.1 |hdl=2246/6968 |s2cid=207890316 |url=https://www.biodiversitylibrary.org/bibliography/164339 }}
• A study on pneumatic structures in the vertebrae of Pilmatueia faundezi is published online by Windholz, Coria & Zurriaguz (2019).{{cite journal |author1=Guillermo J. Windholz |author2=Rodolfo A. Coria |author3=Virginia L. Zurriaguz |year=2019 |title=Vertebral pneumatic structures in the Early Cretaceous sauropod dinosaur Pilmatueia faundezi from northwestern Patagonia, Argentina |journal=Lethaia |volume=53 |issue=3 |pages=369–381 |doi=10.1111/let.12363 |s2cid=212766423 }}
• A study on the anatomy of the appendicular skeleton of Europasaurus holgeri and on the phylogenetic relationships of this species is published online by Carballido et al. (2019).{{cite journal |author1=Jose Luis Carballido |author2=Michael Scheil |author3=Nils Knötschke |author4=P. Martin Sander |year=2019 |title=The appendicular skeleton of the dwarf macronarian sauropod Europasaurus holgeri from the Late Jurassic of Germany and a re-evaluation of its systematic affinities |journal=Journal of Systematic Palaeontology |volume=18 |issue=9 |pages=739–781 |doi=10.1080/14772019.2019.1683770 |s2cid=213155599 }}
• Redescription of brachiosaurid fossil material from the Upper Jurassic Morrison Formation (Colorado, United States), including a mostly complete skull discovered in 1883, is published online by D'Emic & Carrano (2019).{{cite journal |author1=Michael D. D'Emic |author2=Matthew T. Carrano |year=2019 |title=Redescription of brachiosaurid sauropod dinosaur material from the Upper Jurassic Morrison Formation, Colorado, USA |journal=The Anatomical Record |volume=303 |issue=4 |pages=732–758 |doi=10.1002/ar.24198 |pmid=31254331 |s2cid=195765189 |doi-access=free }}
• A study on the phylogenetic relationships of Galvesaurus herreroi is published by Pérez-Pueyo et al. (2019).{{Cite journal|author1=M. Pérez-Pueyo |author2=M. Moreno-Azanza |author3=J. L. Barco |author4=J. I. Canudo |year=2019 |title=New contributions to the phylogenetic position of the sauropod Galvesaurus herreroi from the late Kimmeridgian-early Tithonian (Jurassic) of Teruel (Spain) |journal=Boletín Geológico y Minero |volume=130 |issue=3 |pages=375–392 |doi=10.21701/bolgeomin.130.3.001 |doi-access=free |hdl=10362/103664 |hdl-access=free }}
• A study on the phylogenetic relationships of the Late Jurassic sauropod dinosaurs from the Tendaguru Formation of Tanzania (Australodocus bohetii, Janenschia robusta and Tendaguria tanzaniensis) is published by Mannion et al. (2019).{{Cite journal|author1=Philip D. Mannion |author2=Paul Upchurch |author3=Daniela Schwarz |author4=Oliver Wings |year=2019 |title=Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution |journal=Zoological Journal of the Linnean Society |volume=185 |issue=3 |pages=784–909 |doi=10.1093/zoolinnean/zly068 |url=https://discovery.ucl.ac.uk/id/eprint/10068573/ |hdl=10044/1/64080 |hdl-access=free }}
• The first confirmed fossil of a sauropod dinosaur from Ethiopia (an isolated tooth) is reported from the Upper Jurassic Mugher Mudstone by Goodwin et al. (2019).{{Cite journal|author1=Mark B. Goodwin |author2=Randall B. Irmis |author3=Gregory P. Wilson |author4=David G. DeMar Jr. |author5=Keegan Melstrom |author6=Cornelia Rasmussen |author7=Balemwal Atnafu |author8=Tadesse Alemu |author9=Million Alemayehu |author10=Samuel G. Chernet |year=2019 |title=The first confirmed sauropod dinosaur from Ethiopia discovered in the Upper Jurassic Mugher Mudstone |journal=Journal of African Earth Sciences |volume=159 |pages=Article 103571 |doi=10.1016/j.jafrearsci.2019.103571 |bibcode=2019JAfES.15903571G |s2cid=201319035 |doi-access=free }}
• A study on the affinities of the sauropod dinosaur known from an isolated metacarpal from the Upper Jurassic (Oxfordian) Jagua Formation (Cuba) is published online by Apesteguía, Izquierdo & Iturralde-Vinent (2019).{{cite journal |author1=S. Apesteguía |author2=Y. Ceballos Izquierdo |author3=M. Iturralde-Vinent |year=2019 |title=New taxonomic assignment for a dinosaur sauropod bone from Cuba |journal=Historical Biology: An International Journal of Paleobiology |volume=33 |issue=5 |pages=737–742 |doi=10.1080/08912963.2019.1661406 |s2cid=202854022 }}
• A study on isolated sauropod teeth from the Early Cretaceous Teete locality (Batylykh Formation) (Yakutia, Russia), representing the northernmost sauropod record in the Northern Hemisphere reported so far, is published online by Averianov et al. (2019).{{cite journal |author1=Alexander O. Averianov |author2=Pavel P. Skutschas |author3=Rico Schellhorn |author4=Alexey V. Lopatin |author5=Petr N. Kolosov |author6=Veniamin V. Kolchanov |author7=Dmitry D. Vitenko |author8=Dmitry V. Grigoriev |author9=Thomas Martin |year=2019 |title=The northernmost sauropod record in the Northern Hemisphere |journal=Lethaia |volume=53 |issue=3 |pages=362–368 |doi=10.1111/let.12362 |s2cid=213596036 }}
• Redescription of Jiangshanosaurus lixianensis, a study on the anatomy of Dongyangosaurus sinensis and a study on the phylogenetic relationships of these species is published by Mannion et al. (2019).{{Cite journal|author1=Philip D. Mannion |author2=Paul Upchurch |author3=Xingsheng Jin |author4=Wenjie Zheng |year=2019 |title=New information on the Cretaceous sauropod dinosaurs of Zhejiang Province, China: impact on Laurasian titanosauriform phylogeny and biogeography |journal=Royal Society Open Science |volume=6 |issue=8 |pages=Article ID 191057 |doi=10.1098/rsos.191057 |pmid=31598266 |pmc=6731702 |bibcode=2019RSOS....691057M }}
• New fossil material of titanosauriform sauropods is described from the Upper Cretaceous Daijiaping Formation (Hunan, China) by Han et al. (2019).{{Cite journal|author1=Fenglu Han |author2=Xing Xu |author3=Corwin Sullivan |author4=Leqing Huang |author5=Yu Guo |author6=Rui Wu |year=2019 |title=New titanosauriform (Dinosauria: Sauropoda) specimens from the Upper Cretaceous Daijiaping Formation of southern China |journal=PeerJ |volume=7 |pages=e8237 |doi=10.7717/peerj.8237 |pmid=31875155 |pmc=6927344 |doi-access=free }}
• A study on the long bone histology in early juvenile titanosaur sauropods, evaluating its implications for the knowledge of early stages of development of these dinosaurs, is published online by González et al. (2019).{{cite journal |author1=Romina González |author2=Ignacio A. Cerda |author3=Leonardo S. Filippi |author4=Leonardo Salgado |year=2020 |title=Early growth dynamics of titanosaur sauropods inferred from bone histology |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=537 |pages=Article 109404 |doi=10.1016/j.palaeo.2019.109404 |bibcode=2020PPP...53709404G |s2cid=210317138 }}
• A study on the neurology and phylogenetic affinities of a titanosaurian braincase from the Campanian locality of Fox-Amphoux-Métisson (southeastern France) is published by Knoll et al. (2019).{{cite journal |author1=Fabien Knoll |author2=Stephan Lautenschlager |author3=Xavier Valentin |author4=Verónica Díez Díaz |author5=Xabier Pereda Suberbiola |author6=Géraldine Garcia |year=2019 |title=First palaeoneurological study of a sauropod dinosaur from France and its phylogenetic significance |journal=PeerJ |volume=7 |pages=e7991 |doi=10.7717/peerj.7991 |pmid=31763068 |pmc=6871212 |doi-access=free }}
• Tail vertebrae of lithostrotian titanosaurs are described from the Lower Cretaceous Ilek Formation (Krasnoyarsk Krai, Russia) by Averianov, Ivantsov & Skutschas (2019).{{cite journal |author1=Alexander O. Averianov |author2=Stepan V. Ivantsov |author3=Pavel P. Skutschas |year=2020 |title=Caudal vertebrae of titanosaurian sauropod dinosaurs from the Lower Cretaceous Ilek Formation in Western Siberia, Russia |journal=Cretaceous Research |volume=107 |pages=Article 104309 |doi=10.1016/j.cretres.2019.104309 |bibcode=2020CrRes.10704309A |s2cid=210619334 }}
• A study on the anatomy of the appendicular skeleton of South American titanosaur sauropods and on its implications for the knowledge of the phylogenetic relationships of these sauropods is published by González Riga et al. (2019), who name a new clade Colossosauria.{{cite journal |author1=Bernardo J. González Riga |author2=Matthew C. Lamanna |author3=Alejandro Otero |author4=Leonardo D. Ortiz David |author5=Alexander W.A. Kellner |author6=Lucio M. Ibiricu |year=2019 |title=An overview of the appendicular skeletal anatomy of South American titanosaurian sauropods, with definition of a newly recognized clade |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |pages=e20180374 |doi=10.1590/0001-3765201920180374 |pmid=31340217 |url=https://www.researchgate.net/publication/334272592 |doi-access=free |hdl=11336/106658 |hdl-access=free }}
• Description of titanosaur sauropod vertebrae from the Upper Cretaceous Lameta Formation (India) is published by Wilson et al. (2019).{{Cite journal|author1=Jeffrey A. Wilson |author2=Dhananjay M. Mohabey |author3=Prabhakar Lakra |author4=Arun Bhadran |year=2019 |title=Titanosaur (Dinosauria: Sauropoda) vertebrae from the Upper Cretaceous Lameta Formation of western and central India |journal=Contributions from the Museum of Paleontology, University of Michigan |volume=33 |issue=1 |pages=1–27 |hdl=2027.42/152450 }}
• Description of the anatomy of the braincase of Malawisaurus dixeyi is published by Andrzejewski et al. (2019), who present digital reconstructions of the endocast and inner ear of this species based on CT scanning.{{Cite journal|author1=Kate A. Andrzejewski |author2=Michael J. Polcyn |author3=Dale A. Winkler |author4=Elizabeth Gomani Chindebvu |author5=Louis L. Jacobs |year=2019 |title=The braincase of Malawisaurus dixeyi (Sauropoda: Titanosauria): A 3D reconstruction of the brain endocast and inner ear |journal=PLOS ONE |volume=14 |issue=2 |pages=e0211423 |doi=10.1371/journal.pone.0211423 |pmid=30759166 |pmc=6373922 |bibcode=2019PLoSO..1411423A |doi-access=free }}
• A study on the anatomy and phylogenetic relationships of Uberabatitan ribeiroi is published by Silva et al. (2019).{{Cite journal|author1=Julian C. G. Junior Silva |author2=Thiago S. Marinho |author3=Agustín G. Martinelli |author4=Max C. Langer |year=2019 |title=Osteology and systematics of Uberabatitan ribeiroi (Dinosauria; Sauropoda): a Late Cretaceous titanosaur from Minas Gerais, Brazil |journal=Zootaxa |volume=4577 |issue=3 |pages=401–438 |doi=10.11646/zootaxa.4577.3.1 |pmid=31715707 |s2cid=145939866 |url=https://www.teses.usp.br/teses/disponiveis/59/59139/tde-24032023-100056/ }}
• A study on vertebral pneumaticity in Uberabatitan ribeiroi, indicating that diagenesis can obliterate traces of bone pneumaticity, is published online by Aureliano et al. (2019).{{Cite journal|author1=Tito Aureliano |author2=Aline M. Ghilardi |author3=Julian C.G. Silva Junior |author4=Agustín G. Martinelli |author5=Luiz Carlos Borges Ribeiro |author6=Thiago Marinho |author7=Marcelo A. Fernandes |author8=Fresia Ricardi-Branco |author9=P. Martin Sander |year=2020 |title=Influence of taphonomy on histological evidence for vertebral pneumaticity in an Upper Cretaceous titanosaur from South America |journal=Cretaceous Research |volume=108 |pages=Article 104337 |doi=10.1016/j.cretres.2019.104337 |bibcode=2020CrRes.10804337A |s2cid=211007804 }}
• Fossils of a titanosaur sauropod related to Rapetosaurus and the indeterminate Italian titanosaur specimen MSNM V7157 are described from the Algora vertebrate fossil site located in the Cenomanian strata of the Arenas de Utrillas Formation (Spain) by Mocho et al. (2019).{{Cite journal|author1=P. Mocho |author2=A. Pérez-García |author3=M. Martín Jiménez |author4=F. Ortega |year=2019 |title=New remains from the Spanish Cenomanian shed light on the Gondwanan origin of European Early Cretaceous titanosaurs |journal=Cretaceous Research |volume=95 |pages=164–190 |doi=10.1016/j.cretres.2018.09.016 |bibcode=2019CrRes..95..164M |s2cid=134881405 }}
• Description of five articulated sauropod dorsal vertebrae from the Upper Cretaceous Nemegt Formation, possibly belonging to the species Nemegtosaurus mongoliensis, is published by Averianov & Lopatin (2019), who also study the anatomy of sauropod femora from the Nemegt Formation, and argue that N. mongoliensis is likely to be distinct from Opisthocoelicaudia skarzynskii.{{Cite journal|author1=Alexander O. Averianov |author2=Alexey V. Lopatin |year=2019 |title=Sauropod diversity in the Upper Cretaceous Nemegt Formation of Mongolia—a possible new specimen of Nemegtosaurus |journal=Acta Palaeontologica Polonica |volume=64 |issue=2 |pages=313–321 |doi=10.4202/app.00596.2019 |doi-access=free }}

• A study on the evolution of the femoral fourth trochanter in ornithischian dinosaurs is published online by Persons & Currie (2019).{{Cite journal|author1=W. Scott Persons IV |author2=Philip J. Currie |year=2019 |title=The anatomical and functional evolution of the femoral fourth trochanter in ornithischian dinosaurs |journal=The Anatomical Record |volume=303 |issue=4 |pages=1146–1157 |doi=10.1002/ar.24094 |pmid=30776198 |s2cid=73456637 |doi-access=free }}
• A study on the taphonomy and histology of the ornithischian (ankylosaurian and ornithopod) fossils from the La Cantalera-1 site (Lower Cretaceous Blesa Formation, Spain) is published by Perales-Gogenola et al. (2019).{{Cite journal|author1=Leire Perales-Gogenola |author2=Javier Elorza |author3=José Ignacio Canudo |author4=Xabier Pereda-Suberbiola |year=2019 |title=Taphonomy and palaeohistology of ornithischian dinosaur remains from the Lower Cretaceous bonebed of La Cantalera (Teruel, Spain) |journal=Cretaceous Research |volume=99 |pages=316–334 |doi=10.1016/j.cretres.2019.01.024 |bibcode=2019CrRes..98..316P |s2cid=135430365 |url=http://zaguan.unizar.es/record/87680 }}

• Studies on the anatomy of the skull and postcranial skeleton of Scelidosaurus harrisonii are published online by Norman (2019).{{Cite journal|author=David B. Norman, FLS |year=2020 |title=Scelidosaurus harrisonii from the Early Jurassic of Dorset, England: cranial anatomy |journal=Zoological Journal of the Linnean Society |volume=188 |issue=1 |pages=1–81 |doi=10.1093/zoolinnean/zlz074 }}{{Cite journal|author=David B. Norman, FLS |year=2020 |title=Scelidosaurus harrisonii from the Early Jurassic of Dorset, England: postcranial skeleton |journal=Zoological Journal of the Linnean Society |volume=189 |issue=1 |pages=47–157 |doi=10.1093/zoolinnean/zlz078 |url=https://www.repository.cam.ac.uk/handle/1810/294193 }}
• A study on the holotype specimen of Bienosaurus lufengensis, and on the taxonomic validity and phylogenetic relationships of this dinosaur, is published by Raven et al. (2019).{{Cite journal|author1=Thomas J. Raven |author2=Paul M. Barrett |author3=Xing Xu |author4=Susannah C.R. Maidment |year=2019 |title=A reassessment of the purported ankylosaurian dinosaur Bienosaurus lufengensis from the Lower Lufeng Formation of Yunnan, China |journal=Acta Palaeontologica Polonica |volume=64 |issue=2 |pages=335–342 |doi=10.4202/app.00577.2018 |doi-access=free |hdl=10141/622543 |hdl-access=free }}
• A study on the morphological diversity of stegosaurs through the evolutionary history of the group is published by Romano (2019).{{Cite journal|author=Marco Romano |year=2019 |title=Disparity vs. diversity in Stegosauria (Dinosauria, Ornithischia): cranial and post-cranial sub-dataset provide different signals |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=7 |pages=857–865 |doi=10.1080/08912963.2017.1397655 |bibcode=2019HBio...31..857R |s2cid=89787668 }}
• Two new stegosaurian specimens from the northernmost outcrops of the Morrison Formation in Montana, one of which is the northernmost occurrence of a dinosaur from the Morrison Formation reported so far, are described by Woodruff, Trexler & Maidment (2019).{{Cite journal|author1=D. Cary Woodruff |author2=David Trexler |author3=Susannah C.R. Maidment |year=2019 |title=Two new stegosaur specimens from the Upper Jurassic Morrison Formation of Montana, USA |journal=Acta Palaeontologica Polonica |volume=64 |issue=3 |pages=461–480 |doi=10.4202/app.00585.2018 |doi-access=free }}
• Description of a new specimen of Miragaia longicollum and a study on the taxonomic validity and phylogenetic relationships of this species is published by Costa & Mateus (2019), who transfer the species Alcovasaurus longispinus to the genus Miragaia.{{Cite journal|author1=Francisco Costa |author2=Octávio Mateus |year=2019 |title=Dacentrurine stegosaurs (Dinosauria): A new specimen of Miragaia longicollum from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America |journal=PLOS ONE |volume=14 |issue=11 |pages=e0224263 |doi=10.1371/journal.pone.0224263 |pmid=31721771 |pmc=6853308 |bibcode=2019PLoSO..1424263C |doi-access=free }}
• Plates of an armored dinosaur from the Lower Jurassic (Sinemurian-Pliensbachian) Lower Kota Formation (India) are redescribed by Galton (2019), who considers these fossils to be more similar to plates of ankylosaurians than basal thyreophorans, and interprets them as the earliest ankylosaurian fossils reported so far.{{Cite journal|author=Peter M. Galton |year=2019 |title=Earliest record of an ankylosaurian dinosaur (Ornithischia: Thyreophora): Dermal armor from Lower Kota Formation (Lower Jurassic) of India |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=291 |issue=2 |pages=205–219 |doi=10.1127/njgpa/2019/0800 |s2cid=134302379 }}
• Description of an assemblage of 12 partial, articulated or associated ankylosaurian skeletons and thousands of isolated bones and teeth from the Cretaceous (Santonian) Iharkút vertebrate locality (Hungary) will be published by Ősi et al. (2019).{{cite journal |author1=Attila Ősi |author2=Gábor Botfalvai |author3=Gáspár Albert |author4=Zsófia Hajdu |year=2019 |title=The dirty dozen: taxonomical and taphonomical overview of a unique ankylosaurian (Dinosauria: Ornithischia) assemblage from the Santonian Iharkút locality, Hungary |journal=Palaeobiodiversity and Palaeoenvironments |volume=99 |issue=2 |pages=195–240 |doi=10.1007/s12549-018-0362-z |bibcode=2019PdPe...99..195O |s2cid=135050124 |url=http://real.mtak.hu/103219/1/Osi_et_al_MS_corrected_dirty_dozen.pdf }}
• A study on the evolution of morphological traits associated with tail weaponry in ankylosaurs and glyptodonts, aiming to quantitatively test the hypothesis that tail weaponry of these groups is an example of convergent evolution, is published online by Arbour & Zanno (2019).{{cite journal |author1=Victoria M. Arbour |author2=Lindsay E. Zanno |year=2019 |title=Tail weaponry in ankylosaurs and glyptodonts: an example of a rare but strongly convergent phenotype |journal=The Anatomical Record |volume=303 |issue=4 |pages=988–998 |doi=10.1002/ar.24093 |pmid=30835954 |s2cid=73488683 |doi-access=free }}
• Murray, Riguetti & Rozadilla (2019) describe ankylosaur osteoderms from the Upper Cretaceous (Campanian-Maastrichtian) Allen Formation (Argentina).{{cite journal |author1=Alejandro Murray |author2=Facundo Riguetti |author3=Sebastián Rozadilla |year=2019 |title=New ankylosaur (Thyreophora, Ornithischia) remains from the Upper Cretaceous of Patagonia |journal=Journal of South American Earth Sciences |volume=96 |pages=Article 102320 |doi=10.1016/j.jsames.2019.102320 |bibcode=2019JSAES..9602320M |s2cid=202192449 }}
• Description of three new skull specimens of Talarurus plicatospineus from the Upper Cretaceous (Cenomanian–Santonian) Bayan Shireh Formation (Mongolia), and a study on the phylogenetic relationships of this species, is published online by Park et al. (2019).{{Cite journal|author1=Jin-Young Park |author2=Yuong-Nam Lee |author3=Philip J. Currie |author4=Yoshitsugu Kobayashi |author5=Eva Koppelhus |author6=Rinchen Barsbold |author7=Octávio Mateus |author8=Sungjin Lee |author9=Su-Hwan Kim |year=2020 |title=Additional skulls of Talarurus plicatospineus (Dinosauria: Ankylosauridae) and implications for paleobiogeography and paleoecology of armored dinosaurs |journal=Cretaceous Research |volume=108 |pages=Article 104340 |doi=10.1016/j.cretres.2019.104340 |bibcode=2020CrRes.10804340P |s2cid=212423361 }}
• Evidence for sexual dimorphism in Tianzhenosaurus youngi is presented by Ma (2019).{{Cite journal|author1=Ma Duiping|year=2019|title=Preliminary study on the sexual dimorphism of Tianzhenosaurus youngi|journal=Journal of Geology|volume=43|issue=4|pages=589–594|url=http://eng.oversea.cnki.net/kcms/detail/detail.aspx?dbCode=cjfq&QueryID=11&CurRec=7&filename=JSDZ201904007&dbname=CJFDLAST2020|access-date=2020-05-08|archive-date=2020-07-26|archive-url=https://web.archive.org/web/20200726072255/http://eng.oversea.cnki.net/kcms/detail/detail.aspx?dbCode=cjfq&QueryID=11&CurRec=7&filename=JSDZ201904007&dbname=CJFDLAST2020|url-status=dead}}
• A study on the brain morphology and topography of cranial nerves of Bissektipelta archibaldi is published by Alifanov & Saveliev (2019).{{Cite journal|author1=V. R. Alifanov |author2=S. V. Saveliev |year=2019 |title=The brain morphology and neurobiology in armored dinosaur Bissekipelta archibaldi (Ankylosauridae) from the Late Cretaceous of Uzbekistan |journal=Paleontological Journal |volume=53 |issue=3 |pages=315–321 |doi=10.1134/S003103011903002X |bibcode=2019PalJ...53..315A |s2cid=195299630 |url=https://elibrary.ru/item.asp?id=37310131 }}
• A study on the bone histology of the holotype specimen of Antarctopelta oliveroi and on its implication for the knowledge of paleobiology of this species is published by Cerda et al. (2019).{{Cite journal|author1=Ignacio A. Cerda |author2=Zulma Gasparini |author3=Rodolfo A. Coria |author4=Leonardo Salgado |author5=Marcelo Reguero |author6=Denis Ponce |author7=Romina Gonzalez |author8=J. Marcos Jannello |author9=Juan Moly |year=2019 |title=Paleobiological inferences for the Antarctic dinosaur Antarctopelta oliveroi (Ornithischia: Ankylosauria) based on bone histology of the holotype |journal=Cretaceous Research |volume=103 |pages=Article 104171 |doi=10.1016/j.cretres.2019.07.001 |bibcode=2019CrRes.10304171C |s2cid=199112893 }}

• A study on the age of the Kulinda locality (south-eastern Siberia, Russia) which yielded fossils of Kulindadromeus zabaikalicus is published by Cincotta et al. (2019).{{Cite journal|author1=Aude Cincotta |author2=Ekaterina B. Pestchevitskaya |author3=Sofia M. Sinitsa |author4=Valentina S. Markevich |author5=Vinciane Debaille |author6=Svetlana A. Reshetova |author7=Irina M. Mashchuk |author8=Andrei O. Frolov |author9=Axel Gerdes |author10=Johan Yans |author11=Pascal Godefroit |year=2019 |title=The rise of feathered dinosaurs: Kulindadromeus zabaikalicus, the oldest dinosaur with 'feather-like' structures |journal=PeerJ |volume=7 |pages=e6239 |doi=10.7717/peerj.6239 |pmid=30723614 |pmc=6361000 |doi-access=free }}
• First photogrammetric models of the type locality burrow of Oryctodromeus cubicularis are presented by Wilson & Varricchio (2019).{{cite journal |author1=John P. Wilson |author2=David J. Varricchio |year=2019 |title=Photogrammetry of the Oryctodromeus cubicularis type locality burrow and the utility of preexisting, standard field photographs for three dimensional digital reconstruction |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue= 8|pages= 1054–1061|doi=10.1080/08912963.2018.1563783 |s2cid=91500384 }}
• A study on the taphonomy of fossils of Oryctodromeus cubicularis is published by Krumenacker et al. (2019), who also report discovery of new burrows of this dinosaur.{{Cite journal|author1=L.J. Krumenacker |author2=David J. Varricchio |author3=John P. Wilson |author4=Anthony Martin |author5=Ashley Ferguson |year=2019 |title=Taphonomy of and new burrows from Oryctodromeus cubicularis, a burrowing neornithischian dinosaur, from the mid-Cretaceous (Albian-Cenomanian) of Idaho and Montana, U.S.A. |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=530 |pages=300–311 |doi=10.1016/j.palaeo.2019.05.047 |bibcode=2019PPP...530..300K |s2cid=195570530 }}
• New fossil material of ornithopod dinosaurs is described from the Cretaceous Flat Rocks locality (Wonthaggi Formation, Australia) by Herne et al. (2019), who also revise Qantassaurus intrepidus and study the phylogenetic relationships of the Victorian ornithopods.
• Two minuscule ornithopod femora, likely belonging to individuals around the point of hatching, are described from the Cenomanian Griman Creek Formation (Australia) by Kitchener et al. (2019).{{Cite journal|author1=Justin L. Kitchener |author2=Nicolás E. Campione |author3=Elizabeth T. Smith |author4=Phil R. Bell |year=2019 |title=High-latitude neonate and perinate ornithopods from the mid-Cretaceous of southeastern Australia |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 19600 |doi=10.1038/s41598-019-56069-8 |pmid=31862946 |pmc=6925213 |bibcode=2019NatSR...919600K }}
• Description of new fossil material of large ornithopod dinosaurs from the Lower Cretaceous localities in El Castellar (Maestrazgo Basin, Teruel, Spain), and a study on the implications of these fossils for the knowledge of ornithopod diversity in the Lower Cretaceous of the Iberian Peninsula, is published by Verdú et al. (2019).{{Cite journal|author1=Francisco J. Verdú |author2=Alberto Cobos |author3=Rafael Royo-Torres |author4=Luis Alcalá |year=2019 |title=Diversity of large ornithopod dinosaurs in the upper Hauterivian-lower Barremian (Lower Cretaceous) of Teruel (Spain): a morphometric approach |journal=Spanish Journal of Palaeontology |volume=34 |issue=2 |pages=269–288 |doi=10.7203/sjp.34.2.16116 |s2cid=214180178 |url=http://sepaleontologia.es/revista/anteriores/SJP%20(2019)%20vol.%2034/vol2/7_verdu.pdf }}
• Description of the anatomy of the skeleton of Talenkauen santacrucensis is published by Rozadilla, Agnolín & Novas (2019).{{cite journal |author1=Sebastián Rozadilla |author2=Federico Lisandro Agnolín |author3=Fernando Emilio Novas |year=2019 |title=Osteology of the Patagonian ornithopod Talenkauen santacrucensis (Dinosauria, Ornithischia) |journal=Journal of Systematic Palaeontology |volume=17 |issue=24 |pages=2043–2089 |doi=10.1080/14772019.2019.1582562 |bibcode=2019JSPal..17.2043R |s2cid=155344014 }}
• A study on the anatomy of the skeleton of Macrogryphosaurus gondwanicus is published online by Rozadilla, Cruzado-Caballero & Calvo (2019).{{Cite journal|author1=Sebastián Rozadilla |author2=Penélope Cruzado-Caballero |author3=Jorge O. Calvo |year=2020 |title=Osteology of ornithopod Macrogryphosaurus gondwanicus (Dinosauria, Ornithischia) from the Upper Cretaceous of Patagonia, Argentina |journal=Cretaceous Research |volume=108 |pages=Article 104311 |doi=10.1016/j.cretres.2019.104311 |bibcode=2020CrRes.10804311R |s2cid=213679041 |url=http://rid.unrn.edu.ar/handle/20.500.12049/5567 }}
• Skeletal pathologies affecting a subadult specimen of Tenontosaurus tilletti from the Antlers Formation of southeastern Oklahoma are described by Hunt et al. (2019).{{cite journal |author1=T. C. Hunt |author2=J. E. Peterson |author3=J. A. Frederickson |author4=J. E. Cohen |author5=J. L. Berry |year=2019 |title=First documented pathologies in Tenontosaurus tilletti with comments on infection in non-avian dinosaurs |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 8705 |doi=10.1038/s41598-019-45101-6 |pmid=31213629 |pmc=6581885 |bibcode=2019NatSR...9.8705H }}
• A study on the anatomy and phylogenetic relationships of the ornithopod dinosaurs from the Maastrichtian of Crimea, including Riabininohadros weberae, is published by Averianov & Lopatin (2019).{{Cite journal|author1=A. O. Averianov |author2=A. V. Lopatin |year=2019 |title=Dinosaur fossils from the Upper Cretaceous of Crimea |journal=Paleontological Journal |volume=53 |issue=4 |pages=398–410 |doi=10.1134/S0031030119040026 |bibcode=2019PalJ...53..398A |s2cid=201723908 |url=https://elibrary.ru/item.asp?id=38502622 }}
• Redescription of the fossil material of Orthomerus dolloi and a study on the phylogenetic affinities of this taxon is published online by Madzia, Jagt & Mulder (2019).{{Cite journal|author1=Daniel Madzia |author2=John W.M. Jagt |author3=Eric W.A. Mulder |year=2020 |title=Osteology, phylogenetic affinities and taxonomic status of the enigmatic late Maastrichtian ornithopod taxon Orthomerus dolloi (Dinosauria, Ornithischia) |journal=Cretaceous Research |volume=108 |pages=Article 104334 |doi=10.1016/j.cretres.2019.104334 |bibcode=2020CrRes.10804334M |doi-access=free }}
• A study on patterns and processes of morphological evolution of hadrosauroid dinosaurs is published by Stubbs et al. (2019).{{cite journal |author1=Thomas L. Stubbs |author2=Michael J. Benton |author3=Armin Elsler |author4=Albert Prieto-Márquez |year=2019 |title=Morphological innovation and the evolution of hadrosaurid dinosaurs |journal=Paleobiology |volume=45 |issue=2 |pages=347–362 |doi=10.1017/pab.2019.9 |bibcode=2019Pbio...45..347S |s2cid=148567806 |doi-access=free |hdl=1983/df59c332-628e-4545-ade9-a93e4f2e78b1 |hdl-access=free }}
• A study on the nature of the fluvial systems of Laramidia during the Late Cretaceous, as indicated by data from vertebrate and invertebrate fossils from the Kaiparowits Formation of southern Utah, and on the behavior of hadrosaurid dinosaurs over these landscapes, will be published by Crystal et al. (2019).{{cite journal |author1=Victoria F. Crystal |author2=Erica S.J. Evans |author3=Henry Fricke |author4=Ian M. Miller |author5=Joseph J.W. Sertich |year=2019 |title=Late Cretaceous fluvial hydrology and dinosaur behavior in southern Utah, USA: Insights from stable isotopes of biogenic carbonate |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=516 |pages=152–165 |doi=10.1016/j.palaeo.2018.11.022 |bibcode=2019PPP...516..152C |s2cid=135118646 }}
• Evidence of three-dimensional preservation of eumelanin-bearing bodies, dermal cells and blood vessel fragments in a hadrosaur specimen YPMPU 016969 is presented by Fabbri et al. (2019).{{cite journal |author1=Matteo Fabbri |author2=Jasmina Wiemann |author3=Fabio Manucci |author4=Derek E. G. Briggs |year=2019 |title=Three-dimensional soft tissue preservation revealed in the skin of a non-avian dinosaur |journal=Palaeontology |volume=63 |issue=2 |pages=185–193 |doi=10.1111/pala.12470 |doi-access=free }}
• A study on the osteology and phylogenetic relationships of "Tanius laiyangensis" is published online by Zhang et al. (2019).{{Cite journal|author1=Yu-Guang Zhang |author2=Ke-Bai Wang |author3=Shu-Qing Chen |author4=Di Liu |author5=Hai Xing |year=2019 |title=Osteological re-assessment and taxonomic revision of "Tanius laiyangensis" (Ornithischia: Hadrosauroidea) from the Upper Cretaceous of Shandong, China |journal=The Anatomical Record |volume=303 |issue=4 |pages=790–800 |doi=10.1002/ar.24097 |pmid=30773831 |s2cid=73476311 |doi-access=free }}
• A study on the bone histology of tibiae of Maiasaura peeblesorum, focusing on the composition, frequency and cortical extent of localized vascular changes, is published by Woodward (2019).{{Cite journal|author=Holly N. Woodward |year=2019 |title=Maiasaura (Dinosauria: Hadrosauridae) tibia osteohistology reveals non-annual cortical vascular rings in young of the year |journal=Frontiers in Earth Science |volume=7 |pages=Article 50 |doi=10.3389/feart.2019.00050 |bibcode=2019FrEaS...7...50W |s2cid=83459491 |doi-access=free }}
• A study on hadrosaurine skulls from the Dinosaur Park Formation (Alberta, Canada), aiming to assess the influence of ontogeny on skull morphology, and evaluating proposed synonymy between Gryposaurus incurvimanus and G. notabilis, is published online by Lowi-Merri & Evans (2019).{{Cite journal|author1=Talia Michelle Lowi-Merri |author2=David C. Evans |year=2019 |title=Cranial variation in Gryposaurus and biostratigraphy of hadrosaurines (Ornithischia: Hadrosauridae) from the Dinosaur Park Formation of Alberta, Canada |journal=Canadian Journal of Earth Sciences |volume=57 |issue=6 |pages=765–779 |doi=10.1139/cjes-2019-0073 |s2cid=210619635 }}
• Three juvenile specimens of Prosaurolophus maximus, providing new information on the ontogeny of this taxon, are described from the Bearpaw Formation (Alberta, Canada) by Drysdale et al. (2019).{{Cite journal|author1=Eamon T. Drysdale |author2=François Therrien |author3=Darla K. Zelenitsky |author4=David B. Weishampel |author5=David C. Evans |year=2019 |title=Description of juvenile specimens of Prosaurolophus maximus (Hadrosauridae: Saurolophinae) from the Upper Cretaceous Bearpaw Formation of southern Alberta, Canada, reveals ontogenetic changes in crest morphology |journal=Journal of Vertebrate Paleontology |volume=38 |issue=6 |pages=e1547310 |doi=10.1080/02724634.2018.1547310 |s2cid=109440173 }}
• A study on the structure and contents of a large piece of amber attached to a jaw of a specimen of Prosaurolophus maximus from the Cretaceous Dinosaur Park Formation (Alberta, Canada), evaluating the implications of this finding for the knowledge of the habitat and taphonomy of the dinosaur, is published by McKellar et al. (2019).{{Cite journal|author1=Ryan C. McKellar |author2=Emma Jones |author3=Michael S. Engel |author4=Ralf Tappert |author5=Alexander P. Wolfe |author6=Karlis Muehlenbachs |author7=Pierre Cockx |author8=Eva B. Koppelhus |author9=Philip J. Currie |year=2019 |title=A direct association between amber and dinosaur remains provides paleoecological insights |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 17916 |doi=10.1038/s41598-019-54400-x |pmid=31784622 |pmc=6884503 |bibcode=2019NatSR...917916M }}
• A study on the impact of bone tissue structure, early diagenetic regimes and other taphonomic variables on the preservation potential of soft tissues in vertebrate fossils, as indicated by data from fossils of Edmontosaurus annectens from the Standing Rock Hadrosaur Site (Maastrichtian Hell Creek Formation, South Dakota), is published by Ullmann, Pandya & Nellermoe (2019), who report the first recovery of osteocytes and vessels from a fossil vertebral centrum and ossified tendons.{{Cite journal|author1=Paul V. Ullmann |author2=Suraj H. Pandya |author3=Ron Nellermoe |year=2019 |title=Patterns of soft tissue and cellular preservation in relation to fossil bone tissue structure and overburden depth at the Standing Rock Hadrosaur Site, Maastrichtian Hell Creek Formation, South Dakota, USA |journal=Cretaceous Research |volume=99 |pages=1–13 |doi=10.1016/j.cretres.2019.02.012 |bibcode=2019CrRes..99....1U |s2cid=134351785 |doi-access=free }}
• A femur of an early juvenile hadrosaurid, probably belonging to the species Edmontosaurus annectens, is described from the Hell Creek Formation (Montana, United States) by Farke & Yip (2019), providing new information on ontogenetic changes in the skeleton of this dinosaur.{{Cite journal|author1=Andrew A. Farke |author2=Eunice Yip |year=2019 |title=A juvenile cf. Edmontosaurus annectens (Ornithischia, Hadrosauridae) femur documents a previously unreported intermediate growth stage for this taxon |journal=Vertebrate Anatomy Morphology Palaeontology |volume=7 |pages=59–67 |doi=10.18435/vamp29347 |doi-access=free }}
• Skull remains of nestling-sized hadrosaurids, probably belonging to the species Edmontosaurus annectens, are described from the Hell Creek Formation (Montana, United States) by Wosik, Goodwin & Evans (2019).{{Cite journal|author1=Mateusz Wosik |author2=Mark B. Goodwin |author3=David C. Evans |year=2019 |title=Nestling-sized hadrosaurine cranial material from the Hell Creek Formation of northeastern Montana, USA, with an analysis of cranial ontogeny in Edmontosaurus annectens |journal=PaleoBios |volume=36 |pages=ucmp_paleobios_44525 |url=https://escholarship.org/uc/item/6106g279 }}
• A study of three-dimensionally preserved squamous skin of a member of the genus Edmontosaurus from the Upper Cretaceous (Campanian) Wapiti Formation (Alberta, Canada) is published by Barbi et al. (2019).{{cite journal |author1=Mauricio Barbi |author2=Phil R. Bell |author3=Federico Fanti |author4=James J. Dynes |author5=Anezka Kolaceke |author6=Josef Buttigieg |author7=Ian M. Coulson |author8=Philip J. Currie |year=2019 |title=Integumentary structure and composition in an exceptionally well-preserved hadrosaur (Dinosauria: Ornithischia) |journal=PeerJ |volume=7 |pages=e7875 |doi=10.7717/peerj.7875 |pmid=31637130 |pmc=6800526 |doi-access=free }}
• The first definitive lambeosaurine fossil (an isolated skull bone) is described from the Liscomb Bonebed of the Prince Creek Formation (Alaska, United States) by Takasaki et al. (2019).{{Cite journal|author1=Ryuji Takasaki |author2=Anthony R. Fiorillo |author3=Yoshitsugu Kobayashi |author4=Ronald S. Tykoski |author5=Paul J. McCarthy |year=2019 |title=The first definite lambeosaurine bone from the Liscomb Bonebed of the Upper Cretaceous Prince Creek Formation, Alaska, United States |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 5384 |doi=10.1038/s41598-019-41325-8 |pmid=30926823 |pmc=6440964 |bibcode=2019NatSR...9.5384T }}
• Fossils of a lambeosaurine related to the Eurasian Tsintaosaurini are described from the lower Maastrichtian of the Els Nerets locality (eastern Tremp Syncline, northeastern Spain) by Conti et al. (2019).{{cite journal |author1=Simone Conti |author2=Bernat Vila |author3=Albert G. Sellés |author4=Àngel Galobart |author5=Michael J. Benton |author6=Albert Prieto-Márquez |year=2020 |title=The oldest lambeosaurine dinosaur from Europe: insights into the arrival of Tsintaosaurini |journal=Cretaceous Research |volume=107 |pages=Article 104286 |doi=10.1016/j.cretres.2019.104286 |bibcode=2020CrRes.10704286C |hdl=1983/be876efb-979c-4237-94f9-5f8d80121f7e |s2cid=208195457 |url=https://research-information.bris.ac.uk/ws/files/239817750/Conti_et_al.pdf }}
• A study on the microwear of hadrosaur teeth from the La Parrita locality (Cerro del Pueblo Formation, Mexico) and on its implications for the knowledge of jaw mechanics and feeding ecology of these hadrosaurs is published by Rivera-Sylva et al. (2019).{{Cite journal|author1=Héctor E. Rivera-Sylva |author2=Christina I. Barrón-Ortízb |author3=Rafael l Vivas González |author4=Rosalba Lizbeth Nava Rodríguez |author5=José Rubén Guzmán-Gutiérreza |author6=Fernando Cabral Valdez |author7=Claudio de León Dávila |year=2019 |title=Preliminary assessment of hadrosaur dental microwear from the Cerro del Pueblo Formation (Upper Cretaceous: Campanian) of Coahuila, northeastern Mexico |journal=Paleontología Mexicana |volume=8 |issue=1 |pages=17–28 |doi=10.22201/igl.05437652e.2019.8.1.220 |url=http://www.ojs-igl.unam.mx/index.php/Paleontologia/article/view/606 }}
• A study on bone histology of Psittacosaurus lujiatunensis through its ontogeny is published by Zhao et al. (2019).{{Cite journal|author1=Qi Zhao |author2=Michael J. Benton |author3=Shoji Hayashi |author4=Xing Xu |year=2019 |title=Ontogenetic stages of ceratopsian dinosaur Psittacosaurus in bone histology |journal=Acta Palaeontologica Polonica |volume=64 |issue=2 |pages=323–334 |doi=10.4202/app.00559.2018 |doi-access=free }}
• A study on the morphological changes in the braincase of Psittacosaurus lujiatunensis through its ontogeny, based on data from three specimens from the Lower Cretaceous Yixian Formation (China), is published by Bullar et al. (2019).{{Cite journal|author1=Claire M. Bullar |author2=Qi Zhao |author3=Michael J. Benton |author4=Michael J. Ryan |year=2019 |title=Ontogenetic braincase development in Psittacosaurus lujiatunensis (Dinosauria: Ceratopsia) using micro-computed tomography |journal=PeerJ |volume=7 |pages=e7217 |doi=10.7717/peerj.7217 |pmid=31428535 |pmc=6698140 |doi-access=free }}
• A three-dimensional virtual endocast of a member of the genus Auroraceratops is reconstructed on the basis of a well-preserved skull by Zhang et al. (2019).{{Cite journal|author1=Qian-Nan Zhang |author2=James L. King |author3=Da-Qing Li |author4=Ye-Mao Hou |author5=Hai-Lu You |year=2019 |title=Endocranial morphology of Auroraceratops sp. (Dinosauria: Ceratopsia) from the Early Cretaceous of Gansu Province, China |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=10 |pages=1355–1360 |doi=10.1080/08912963.2019.1588893 |s2cid=91650220 }}
• Studies on the preservation of fossils of Auroraceratops rugosus, on their stratigraphic provenance, and on the anatomy and phylogenetic relationships of this species are published by Suarez et al. (2019),{{Cite journal|author1=Marina B. Suarez |author2=Timothy Milder |author3=Nan Peng |author4=Celina A. Suarez |author5=Hailu You |author6=Daqing Li |author7=Peter Dodson |year=2019 |title=Chemostratigraphy of the Lower Cretaceous dinosaur-bearing Xiagou and Zhonggou formations, Yujingzi Basin, northwest China |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=12–21 |doi=10.1080/02724634.2018.1510412 |s2cid=202865132 }} Suarez et al. (2019),{{Cite journal|author1=Celina A. Suarez |author2=Eric M. Morschhauser |author3=Marina B. Suarez |author4=Hailu You |author5=Daqing Li |author6=Peter Dodson |year=2019 |title=Rare earth element geochemistry of bone beds from the Lower Cretaceous Zhonggou Formation of Gansu Province, China |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=22–35 |doi=10.1080/02724634.2017.1400441 |s2cid=202867203 }} Morschhauser et al. (2019),{{Cite journal|author1=Eric M. Morschhauser |author2=Daqing Li |author3=Hailu You |author4=Peter Dodson |year=2019 |title=Cranial anatomy of the basal neoceratopsian Auroraceratops rugosus (Ornithischia: Ceratopsia) from the Yujingzi Basin, Gansu Province, China |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=36–68 |doi=10.1080/02724634.2017.1399136 |s2cid=202867911 }} Li et al. (2019),{{Cite journal|author1=Daqing Li |author2=Eric M. Morschhauser |author3=Hailu You |author4=Peter Dodson |year=2019 |title=The anatomy of the syncervical of Auroraceratops (Ornithischia: Ceratopsia), the oldest known ceratopsian syncervical |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=69–74 |doi=10.1080/02724634.2018.1510411 |s2cid=202865074 }} Morschhauser et al. (2019){{Cite journal|author1=Eric M. Morschhauser |author2=Hailu You |author3=Daqing Li |author4=Peter Dodson |year=2019 |title=Postcranial morphology of the basal neoceratopsian (Ornithischia: Ceratopsia) Auroraceratops rugosus from the Early Cretaceous (Aptian–Albian) of northwestern Gansu Province, China |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=75–116 |doi=10.1080/02724634.2018.1524383 |s2cid=202867095 }} and Morschhauser et al. (2019).{{Cite journal|author1=Eric M. Morschhauser |author2=Hailu You |author3=Daqing Li |author4=Peter Dodson |year=2019 |title=Phylogenetic history of Auroraceratops rugosus (Ceratopsia: Ornithischia) from the Lower Cretaceous of Gansu Province, China |journal=Journal of Vertebrate Paleontology |volume=38 |issue=Supplement |pages=117–147 |doi=10.1080/02724634.2018.1509866 |s2cid=202867827 }}
• A study on the nature of the observed variation in morphology and size of skulls of Bagaceratops rozhdestvenskyi is published online by Czepiński (2019), who considers the species Gobiceratops minutus, Lamaceratops tereschenkoi, Platyceratops tatarinovi and Magnirostris dodsoni to be junior synonyms of B. rozhdestvenskyi.{{cite journal |author=Łukasz Czepiński |year=2019 |title=Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=10 |pages=1394–1421 |doi=10.1080/08912963.2019.1593404 |s2cid=132780322 }}
• The first postcranial skeleton of Bagaceratops reported so far is described from the Upper Cretaceous Barun Goyot Formation (Mongolia) by Kim, Yun & Lee (2019).{{Cite journal|author1=Bitnara Kim |author2=Hyesu Yun |author3=Yuong-Nam Lee |year=2019 |title=The postcranial skeleton of Bagaceratops (Ornithischia: Neoceratopsia) from the Baruungoyot Formation (Upper Cretaceous) in Hermiin Tsav of southwestern Gobi, Mongolia |journal=Journal of the Geological Society of Korea |volume=55 |issue=2 |pages=179–190 |doi=10.14770/jgsk.2019.55.2.179 |s2cid=150321203 }}
• A study on the anatomy of the appendicular skeleton of Protoceratops andrewsi and on its implications for the knowledge of the locomotor abilities of this species throughout its ontogeny is published by Słowiak, Tereshchenko & Fostowicz-Frelik (2019).{{Cite journal|author1=Justyna Słowiak |author2=Victor S. Tereshchenko |author3=Łucja Fostowicz-Frelik |year=2019 |title=Appendicular skeleton of Protoceratops andrewsi (Dinosauria, Ornithischia): comparative morphology, ontogenetic changes, and the implications for non-ceratopsid ceratopsian locomotion |journal=PeerJ |volume=7 |pages=e7324 |doi=10.7717/peerj.7324 |pmid=31367485 |pmc=6657679 |doi-access=free }}
• A study on the bone histology and skeletal growth of Avaceratops and Yehuecauhceratops is published online by Hedrick et al. (2019).{{Cite journal|author1=Brandon P. Hedrick |author2=Erika Goldsmith |author3=Hector Rivera-Sylva |author4=Anthony R. Fiorillo |author5=Allison R. Tumarkin-Deratzian |author6=Peter Dodson |year=2019 |title=Filling in gaps in the ceratopsid histologic database: Histology of two basal centrosaurines and an assessment of the utility of rib histology in the Ceratopsidae |journal=The Anatomical Record |volume=303 |issue=4 |pages=935–948 |doi=10.1002/ar.24099 |pmid=30773832 |s2cid=73475454 |doi-access=free }}
• New information on the anatomy of the skeleton of Pachyrhinosaurus perotorum is presented by Tykoski, Fiorillo & Chiba (2019), who also provide a new diagnosis of this species.{{cite journal |author1=Ronald S. Tykoski |author2=Anthony R. Fiorillo |author3=Kentaro Chiba |year=2019 |title=New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum |journal=Journal of Systematic Palaeontology |volume=17 |issue=16 |pages=1397–1416 |doi=10.1080/14772019.2018.1532464 |bibcode=2019JSPal..17.1397T |s2cid=92034503 }}
• A study on the morphological variation of the skulls of specimens of Styracosaurus albertensis is published online by Holmes et al. (2019).{{cite journal |author1=Robert.B. Holmes |author2=Walter Scott Persons |author3=Baltej Singh Rupal |author4=Ahmed Jawad Qureshi |author5=Philip J. Currie |year=2020 |title=Morphological variation and asymmetrical development in the skull of Styracosaurus albertensis |journal=Cretaceous Research |volume=107 |pages=Article 104308 |doi=10.1016/j.cretres.2019.104308 |bibcode=2020CrRes.10704308H |s2cid=210260909 }}
• A study on the affinities of two chasmosaurine skulls from the Dinosaur Park Formation (Alberta, Canada), previously referred to the species Chasmosaurus belli, is published by Campbell et al. (2019), who transfer the species Vagaceratops irvinensis to the genus Chasmosaurus, and consider the two studied skulls to be fossils of members of the genus Chasmosaurus of uncertain specific assignment, with morphology intermediate between C. belli and C. irvinensis.{{Cite journal|author1=James Alexander Campbell |author2=Michael J. Ryan |author3=Claudia J. Schroder-Adams |author4=Robert B. Holmes |author5=David C. Evans |year=2019 |title=Temporal range extension and evolution of the chasmosaurine ceratopsid "Vagaceratops" irvinensis (Dinosauria: Ornithischia) in the Upper Cretaceous (Campanian) Dinosaur Park Formation of Alberta |journal=Vertebrate Anatomy Morphology Palaeontology |volume=7 |pages=83–100 |doi=10.18435/vamp29356 |doi-access=free }}
• A study on the taphonomy of hadrosaurid and ceratopsid fossils from the Scabby Butte locality (St. Mary River Formation; Alberta, Canada) is published online by Campbell, Ryan & Anderson (2019).{{cite journal |author1=James Alexander Campbell |author2=Michael P.J. Ryan |author3=Jason Anderson |year=2019 |title=A taphonomic analysis of a multi-taxic bonebed from the St. Mary River Formation (uppermost Campanian to lowermost Maastrichtian) of Alberta, dominated by cf. Edmontosaurus regalis (Ornithischia: Hadrosauridae), with significant remains of Pachyrhinosaurus canadensis (Ornithischia: Ceratopsidae) |journal=Canadian Journal of Earth Sciences |volume=57 |issue= 5|pages= 617–629|doi=10.1139/cjes-2019-0089 |s2cid=210287585 }}
• A study on the taxonomic status of Teyuwasu barberenai, in which it was proposed as a second specimen of the herrerasaurid Staurikosaurus pricei rather than a separate genus and species, is published by Garcia, Müller & Dias-da-Silva (2019).{{Cite journal|author1=Maurício S. Garcia|author2=Rodrigo T. Müller|author3=Sérgio Dias-da-Silva|year=2019|title=On the taxonomic status of Teyuwasu barberenai Kischlat, 1999 (Archosauria: Dinosauriformes), a challenging taxon from the Upper Triassic of southern Brazil|journal=Zootaxa|volume=4629|issue=1|pages=146–150|doi=10.11646/zootaxa.4629.1.12 |pmid=31712541|s2cid=198274900}}
• A study on a putative sauropodomorph ilium, from Carnian rocks of the Candelária Sequence/Santa Maria Formation (Brazil), aims to discuss muscle attachment scars, in the context of ontogeny and phylogeny of basal dinosauriforms, focusing in saturnaliine sauropodomorphs is published by Garcia et al. (2019).{{Cite journal|last1=Garcia|first1=Maurício|last2=Pretto|first2=Flávio|last3=Dias-da-Silva|first3=Sérgio|last4=Müller|first4=Rodrigo|date=2019|title=A dinosaur ilium from the Late Triassic of Brazil with comments on key-character supporting Saturnaliinae|journal=Anais da Academia Brasileira de Ciências|volume=91 |issue=Suppl. 2 |pages=e20180614 |doi=10.1590/0001-3765201920180614 |pmid=31411248 |doi-access=free}}

• A study on early bird evolution, aiming to determine their divergence times and evolutionary rates, is published by Zhang & Wang (2019).{{cite journal |author1=Chi Zhang |author2=Min Wang |year=2019 |title=Bayesian tip dating reveals heterogeneous morphological clocks in Mesozoic birds |journal=Royal Society Open Science |volume=6 |issue=7 |pages=Article ID 182062 |doi=10.1098/rsos.182062 |pmid=31417697 |pmc=6689603 |bibcode=2019RSOS....682062Z }}
• A study on the impact of varying oxygen concentrations, global temperatures and air densities on the flight performance of extinct birds and on major diversification events which took place during the evolution of birds is published by Serrano et al. (2019).{{cite journal |author1=Francisco José Serrano |author2=Luis María Chiappe |author3=Paul Palmqvist |author4=Borja Figueirido |author5=John Long |author6=José Luis Sanz |year=2019 |title=The effect of long-term atmospheric changes on the macroevolution of birds |journal=Gondwana Research |volume=65 |pages=86–96 |doi=10.1016/j.gr.2018.09.002 |bibcode=2019GondR..65...86S |hdl=2328/38616 |s2cid=135203437 |hdl-access=free }}
• A study aiming to determine whether there is a relationship between the volume of lacunae of osteocytes derived from static osteogenesis and biological parameters such as genome size, body mass, growth rate, metabolic rate or red blood cell size in extant birds is published by Grunmeier & D'Emic (2019), who evaluate the implications of their finding for inferring physiological paraments in extinct birds, and potentially other vertebrates, on the basis of osteocyte lacunar volumes.{{cite journal | vauthors = Grunmeier O, D'Emic MD | title = Scaling of statically derived osteocyte lacunae in extant birds: implications for palaeophysiological reconstruction | journal = Biology Letters | volume = 15 | issue = 4 | pages = 20180837 | date = April 2019 | pmid = 30940024 | pmc = 6501357 | doi = 10.1098/rsbl.2018.0837 }}
• A study on the expression patterns of the anterior genes Gli₃ and Alx₄ in limb buds of emu, chicken and zebra finch embryos, and on their implications for the knowledge of evolution of the avian digital pattern, is published by Kawahata et al. (2019).{{cite journal |author1=Kenta Kawahata |author2=Ingrid Rosenburg Cordeiro |author3=Shogo Ueda |author4=Guojun Sheng |author5=Yuuta Moriyama |author6=Chika Nishimori |author7=Reiko Yu |author8=Makoto Koizumi |author9=Masataka Okabe |author10=Mikiko Tanaka |year=2019 |title=Evolution of the avian digital pattern |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 8560 |doi=10.1038/s41598-019-44913-w |pmid=31189916 |pmc=6561939 |bibcode=2019NatSR...9.8560K }}
• A study on the diversity of regulatory gene expression profiles of amniote digits, evaluating its implications for the knowledge of the origin of the avian digital pattern, is published by Stewart et al. (2019).{{Cite journal|author1=Thomas A. Stewart |author2=Cong Liang |author3=Justin L. Cotney |author4=James P. Noonan |author5=Thomas J. Sanger |author6=Günter P. Wagner |year=2019 |title=Evidence against tetrapod-wide digit identities and for a limited frame shift in bird wings |journal=Nature Communications |volume=10 |issue=1 |pages=Article number 3244 |doi=10.1038/s41467-019-11215-8 |pmid=31324809 |pmc=6642197 |bibcode=2019NatCo..10.3244S }}
• A study on the total mass of the dentition of Mesozoic birds, and on the impact of the reduction and loss of teeth on total body mass of Mesozoic birds, is published by Zhou, Sullivan & Zhang (2019).{{Cite journal|author1=Ya-Chun Zhou |author2=Corwin Sullivan |author3=Fu-Cheng Zhang |year=2019 |title=Negligible effect of tooth reduction on body mass in Mesozoic birds |journal=Vertebrata PalAsiatica |volume=57 |issue=1 |pages=38–50 |doi=10.19615/j.cnki.1000-3118.180307 |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201811/t20181103_5160013.html }}
• A review of the available evidence of the diet of Mesozoic birds, especially those known from the Lower Cretaceous Jehol Lagerstätte (China), is published by O'Connor (2019).{{Cite journal|author=Jingmai O'Connor |year=2019 |title=The trophic habits of early birds |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=513 |pages=178–195 |doi=10.1016/j.palaeo.2018.03.006 |bibcode=2019PPP...513..178O |s2cid=133781513 }}
• A study on the early evolution of the digestive system of birds, as indicated by data from paravians from the Jurassic Yanliao Biota and the Cretaceous Jehol Biota (China), is published online by O'Connor & Zhou (2019).{{cite journal |author1=Jingmai K. O'Connor |author2=Zhonghe Zhou |year=2019 |title=The evolution of the modern avian digestive system: insights from paravian fossils from the Yanliao and Jehol biotas |journal=Palaeontology |volume=63 |issue=1 |pages=13–27 |doi=10.1111/pala.12453 |doi-access=free }}
• A study on the early evolution of the diel activity patterns in diapsid lineages, focusing on the common ancestor branch of living birds, is published by Yu & Wang (2019).{{Cite journal|author1=Yonghua Wu |author2=Haifeng Wang |year=2019 |title=Convergent evolution of bird-mammal shared characteristics for adapting to nocturnality |journal=Proceedings of the Royal Society B: Biological Sciences |volume=286 |issue=1897 |pages=Article ID 20182185 |doi=10.1098/rspb.2018.2185 |pmid=30963837 |pmc=6408890 }}
• A study on the diversity of melanosome morphology in iridescent feathers of extant birds, and on its implications for inferring iridescence in fossil feathers in general and in Eocene birds cf. Primotrogon and Scaniacypselus in particular, is published by Nordén et al. (2019).{{cite journal |author1=Klara K. Nordén |author2=Jaeike Faber |author3=Frane Babarović |author4=Thomas L. Stubbs |author5=Tara Selly |author6=James D. Schiffbauer |author7=Petra Peharec Štefanić |author8=Gerald Mayr |author9=Fiann Smithwick |author10=Jakob Vinther |year=2019 |title=Melanosome diversity and convergence in the evolution of iridescent avian feathers-implications for paleocolor reconstruction |journal=Evolution |volume=73 |issue=1 |pages=15–27 |doi=10.1111/evo.13641 |pmid=30411346 |pmc=6587736 }}
• A study on the morphology of melanosomes from feathers of extant birds that express non-iridescent structural colour, and on its implications for the possibility of detection of these melanosomes in the fossil record in general and in stem group roller Eocoracias in particular, is published by Babarović et al. (2019).{{cite journal |author1=Frane Babarović |author2=Mark N. Puttick |author3=Marta Zaher |author4=Elizabeth Learmonth |author5=Emily-Jane Gallimore |author6=Fiann M. Smithwick |author7=Gerald Mayr |author8=Jakob Vinther |year=2019 |title=Characterization of melanosomes involved in the production of non-iridescent structural feather colours and their detection in the fossil record |journal=Journal of the Royal Society Interface |volume=16 |issue=155 |pages=Article ID 20180921 |doi=10.1098/rsif.2018.0921 |pmid=31238836 |pmc=6597762 }}
• Amino acids are detected in two specimens of fossil feathers from the Cretaceous amber from Myanmar and Eocene Baltic amber by McCoy et al. (2019).{{cite journal |author1=Victoria E. McCoy |author2=Sarah E. Gabbott |author3=Kirsty Penkman |author4=Matthew J. Collins |author5=Samantha Presslee |author6=John Holt |author7=Harrison Grossman |author8=Bo Wang |author9=Monica M. Solórzano Kraemer |author10=Xavier Delclòs |author11=Enrique Peñalver |year=2019 |title=Ancient amino acids from fossil feathers in amber |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 6420 |doi=10.1038/s41598-019-42938-9 |pmid=31015542 |pmc=6478714 |bibcode=2019NatSR...9.6420M }}
• Description of new amber specimens preserving feathers from the Cretaceous of Myanmar, evaluating the implications of these feathers for the knowledge of the development of the rachis-dominated feathers of Mesozoic birds, is published by Carroll, Chiappe & Bottjer (2019).{{cite journal |author1=Nathan R. Carroll |author2=Luis M. Chiappe |author3=David J. Bottjer |year=2019 |title=Mid-Cretaceous amber inclusions reveal morphogenesis of extinct rachis-dominated feathers |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 18108 |doi=10.1038/s41598-019-54429-y |pmid=31792276 |pmc=6889117 |bibcode=2019NatSR...918108C }}
• A study on Praeornis sharovi from the Late Jurassic of Kazakhstan is published by Agnolin, Rozadilla & Carvalho (2019), who interpret the fossil as a tail feather of a basal bird.{{cite journal |author1=Federico L. Agnolin |author2=Sebastián Rozadilla |author3=Ismar de Souza Carvalho |year=2019 |title=Praeornis sharovi Rautian, 1978 a fossil feather from the early Late Jurassic of Kazakhstan |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=7 |pages=962–966 |doi=10.1080/08912963.2017.1413102 |bibcode=2019HBio...31..962A |hdl=11422/3324 |s2cid=55885911 |hdl-access=free }}
• A geochemical halo of the calamus of the holotype feather of Archaeopteryx lithographica, detected using Laser-Stimulated Fluorescence, is reported by Kaye et al. (2019), who also assess the implications of their findings for the identification of this feather;{{cite journal |author1=Thomas G. Kaye |author2=Michael Pittman |author3=Gerald Mayr |author4=Daniela Schwarz |author5=Xing Xu |year=2019 |title=Detection of lost calamus challenges identity of isolated Archaeopteryx feather |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 1182 |doi=10.1038/s41598-018-37343-7 |pmid=30718905 |pmc=6362147 |bibcode=2019NatSR...9.1182K }} the study is subsequently criticized by Carney, Tischlinger & Shawkey (2020).{{cite journal |author1=Ryan M. Carney |author2=Helmut Tischlinger |author3=Matthew D. Shawkey |year=2020 |title=Evidence corroborates identity of isolated fossil feather as a wing covert of Archaeopteryx |journal=Scientific Reports |volume=10 |issue=1 |pages=Article number 15593 |doi=10.1038/s41598-020-65336-y |pmid=32999314 |pmc=7528088 |bibcode=2020NatSR..1015593C }}
• A study on the postcranial skeleton of the Berlin specimen of Archaeopteryx lithographica, reporting pneumatic structures visible under ultraviolet light and confirming that numerous postcranial bones of Archaeopteryx were reduced in mass via hollow interiors, is published by Schwarz et al. (2019).{{cite journal |author1=Daniela Schwarz |author2=Martin Kundrát |author3=Helmut Tischlinger |author4=Gareth Dyke |author5=Ryan M. Carney |year=2019 |title=Ultraviolet light illuminates the avian nature of the Berlin Archaeopteryx skeleton |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 6518 |doi=10.1038/s41598-019-42823-5 |pmid=31019224 |pmc=6482141 |bibcode=2019NatSR...9.6518S }}
• A comparative study of all named taxa referred to Confuciusornithiformes, taxonomic revision of the group and a study on the phylogenetic relationships of members of the group is published by Wang, O'Connor & Zhou (2019).{{Cite journal|author1=Min Wang |author2=Jingmai O'Connor |author3=Zhong-He Zhou |year=2019 |title=A taxonomical revision of the Confuciusornithiformes (Aves: Pygostylia) |journal=Vertebrata PalAsiatica |volume=57 |issue=1 |pages=1–37 |doi=10.19615/j.cnki.1000-3118.180530 |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201811/t20181103_5160014.html }}
• Evidence of beak preservation in a referred specimen of Confuciusornis sanctus (originally the holotype of Jinzhouornis zhangjiyingia) is presented by Falk et al. (2019).{{Cite journal|author1=Amanda Falk |author2=Jingmai O'Connor |author3=Min Wang |author4=Zhonghe Zhou |year=2019 |title=On the preservation of the beak in Confuciusornis (Aves: Pygostylia) |journal=Diversity |volume=11 |issue=11 |pages=Article 212 |doi=10.3390/d11110212 |doi-access=free |bibcode=2019Diver..11..212F }}
• A study on bone histology of Confuciusornis sanctus, and on its implications for the knowledge of the life history of this species, is published online by Chinsamy et al. (2019).{{cite journal |author1=Anusuya Chinsamy |author2=Jesús Marugán-Lobón |author3=Francisco J. Serrano |author4=Luis Chiappe |year=2019 |title=Osteohistology and life history of the basal pygostylian, Confuciusornis sanctus |journal=The Anatomical Record |volume=303 |issue=4 |pages=949–962 |doi=10.1002/ar.24282 |pmid=31751500 |s2cid=208229215 |doi-access=free }}
• Fully fledged feathering is reported in a hatchling enantiornithine specimen from the Early Cretaceous Las Hoyas locality in Spain (first described by Knoll et al., 2018){{Cite journal|author1=Fabien Knoll |author2=Luis M. Chiappe |author3=Sophie Sanchez |author4=Russell J. Garwood |author5=Nicholas P. Edwards |author6=Roy A. Wogelius |author7=William I. Sellers |author8=Phillip L. Manning |author9=Francisco Ortega |author10=Francisco J. Serrano |author11=Jesús Marugán-Lobón |author12=Elena Cuesta |author13=Fernando Escaso |author14=Jose Luis Sanz |year=2018 |title=A diminutive perinate European Enantiornithes reveals an asynchronous ossification pattern in early birds |journal=Nature Communications |volume=9 |issue=1 |pages=Article number 937 |doi=10.1038/s41467-018-03295-9 |pmid=29507288 |pmc=5838198 |bibcode=2018NatCo...9..937K }} by Kate et al. (2019).{{Cite journal|author1=Thomas G. Kaye |author2=Michael Pittman |author3=Jesús Marugán-Lobón |author4=Hugo Martín-Abad |author5=José Luis Sanz |author6=Angela D. Buscalioni |year=2019 |title=Fully fledged enantiornithine hatchling revealed by Laser-Stimulated Fluorescence supports precocial nesting behavior |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 5006 |doi=10.1038/s41598-019-41423-7 |pmid=30899080 |pmc=6428842 |bibcode=2019NatSR...9.5006K }}
• A remarkably well-preserved foot of an enantiornithine bird, accompanied by part of the wing plumage, is described from the Cretaceous amber from Myanmar by Xing et al. (2019).{{Cite journal|author1=Lida Xing |author2=Ryan C. McKellar |author3=Jingmai O'Connor |author4=Ming Bai |author5=Kuowei Tseng |author6=Luis M. Chiappe |year=2019 |title=A fully feathered enantiornithine foot and wing fragment preserved in mid-Cretaceous Burmese amber |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 927 |doi=10.1038/s41598-018-37427-4 |pmid=30700773 |pmc=6353931 |bibcode=2019NatSR...9..927X }}
• A foot of a bird (likely a member of Enantiornithes; made the holotype of the species Fortipesavis prehendens in a later publication),{{Cite journal|author1=Alexander D. Clark |author2=Jingmai K. O'Connor |year=2021 |title=Exploring the Ecomorphology of Two Cretaceous Enantiornithines With Unique Pedal Morphology |journal=Frontiers in Ecology and Evolution |volume=9 |pages=Article 654156 |doi=10.3389/fevo.2021.654156 |doi-access=free }} revealing a morphology previously unrecognized in Mesozoic birds, and a range of feathers representing multiple morphotypes are reported for the Cretaceous amber from Myanmar by Xing et al. (2019).{{cite journal |author1=Lida Xing |author2=Ryan C. McKellar |author3=Jingmai K. O'Connor |author4=Kecheng Niu |author5=Huijuan Mai |year=2019 |title=A mid-Cretaceous enantiornithine foot and tail feather preserved in Burmese amber |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 15513 |doi=10.1038/s41598-019-51929-9 |pmid=31664115 |pmc=6820775 |bibcode=2019NatSR...915513X }}
• O'Connor et al. (2019) describe the integument preserved in four juvenile enantiornithine specimens from the Early Cretaceous Jehol Biota, interpreted by the authors as mid to late immature feathers.{{cite journal |author1=Jingmai O'Connor |author2=Amanda Falk |author3=Min Wang |author4=Xiao-Ting Zheng |year=2019 |title=First report of immature feathers in juvenile enantiornithines from the Early Cretaceous Jehol avifauna |journal=Vertebrata PalAsiatica |volume=58 |issue=1 |pages=24–44 |doi=10.19615/j.cnki.1000-3118.190823 |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/201908/t20190823_5368245.html }}
• Description of two new specimens of Protopteryx fengningensis from the Lower Cretaceous Huajiying Formation (China), preserving most of the skeleton and plumage, and providing new information on the anatomy and flight performance of members of this species, is published online by Chiappe et al. (2019).{{cite journal |author1=Luis M. Chiappe |author2=Liu Di |author3=Francisco J. Serrano |author4=Zhang Yuguang |author5=Qingjin Meng |year=2019 |title=Anatomy and flight performance of the early enantiornithine bird Protopteryx fengningensis: information from new specimens of the Early Cretaceous Huajiying Formation of China |journal=The Anatomical Record |volume=303 |issue=4 |pages=716–731 |doi=10.1002/ar.24322 |pmid=31825173 |s2cid=209313158 |doi-access=free }}
• A study on the bone microstructure of Yanornis, and on its implications for the knowledge of the growth strategy of this bird, is published online by Wang et al. (2019).{{cite journal |author1=Junyou Wang |author2=Xiuzhi Hao |author3=Martin Kundrát |author4=Zhiping Liu |author5=Kentaro Uesugi |author6=Zuzana Jurašeková |author7=Bin Guo |author8=Masato Hoshino |author9=Yaoquan Li |author10=Quentin Monfroy |author11=Bin Zhou |author12=Gabriela Fabriciová |author13=Ai Kang |author14=Mei Wang |author15=Yunhui Si |author16=Jie Gao |author17=Guo Xu |author18=Zhen Li |year=2019 |title=Bone tissue histology of the Early Cretaceous bird Yanornis: evidence for a diphyletic origin of modern avian growth strategies within Ornithuromorpha |journal=Historical Biology: An International Journal of Paleobiology |volume=32 |issue=10 |pages=1422–1434 |doi=10.1080/08912963.2019.1593405 |s2cid=108704489 }}
• A study on the evolution and function of avian predentary found in Mesozoic ornithuromorphs, based on data from a specimen of Yanornis martini, is published by Bailleul et al. (2019).{{Cite journal|author1=Alida M. Bailleul |author2=Zhiheng Li |author3=Jingmai O'Connor |author4=Zhonghe Zhou |year=2019 |title=Origin of the avian predentary and evidence of a unique form of cranial kinesis in Cretaceous ornithuromorphs |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=116 |issue=49 |pages=24696–24706 |doi=10.1073/pnas.1911820116 |pmid=31740590 |pmc=6900542 |bibcode=2019PNAS..11624696B |doi-access=free }}
• A study comparing the hindlimb morphology of hesperornithiforms and modern foot-propelled diving birds is published by Bell, Wu & Chiappe (2019).{{Cite journal|author1=Alyssa Bell |author2=Yun-Hsin Wu |author3=Luis M. Chiappe |year=2019 |title=Morphometric comparison of the Hesperornithiformes and modern diving birds |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=513 |pages=196–207 |doi=10.1016/j.palaeo.2017.12.010 |bibcode=2019PPP...513..196B |s2cid=133964417 }}
• A study on the paleobiogeography of hesperornithiforms, evaluating its implications for the knowledge of the paleoecology of the Late Cretaceous Western Interior Seaway, is published by Wilson (2019).{{cite journal |author=Laura E. Wilson |year=2019 |title=A bird's eye view: hesperornithiforms as environmental indicators in the Late Cretaceous Western Interior Seaway |journal=Transactions of the Kansas Academy of Science |volume=122 |issue=3–4 |pages=193–213 |doi=10.1660/062.122.0302 |s2cid=207933625 }}
• A large bird femur referred to the species Gargantuavis philoinos, providing new information on the anatomy of this species, is described from the Maastrichtian of southern France by Buffetaut & Angst (2019), who name a new family Gargantuaviidae.{{Cite journal|author1=Eric Buffetaut |author2=Delphine Angst |year=2019 |title=A femur of the Late Cretaceous giant bird Gargantuavis from Cruzy (southern France) and its systematic implications |journal=Palæovertebrata |volume=42 |issue=1 |pages=e3 |doi=10.18563/pv.42.1.e3 |s2cid=198403535 }}
• Description of a well-preserved pelvis of Gargantuavis from the Maastrichtian Sânpetru Formation (Romania), preserving characteristics previously unknown in Gargantuavis and constituting the first record of this genus outside the area of the Late Cretaceous Ibero-Armorican Island, is published online by Mayr et al. (2019), who evaluate the implications of this finding for the knowledge of the phylogenetic relationships of Gargantuavis;{{cite journal |author1=Gerald Mayr |author2=Vlad Codrea |author3=Alexandru Solomon |author4=Marian Bordeianu |author5=Thierry Smith |year=2020 |title=A well-preserved pelvis from the Maastrichtian of Romania suggests that the enigmatic Gargantuavis is neither an ornithurine bird nor an insular endemic |journal=Cretaceous Research |volume=106 |pages=Article 104271 |doi=10.1016/j.cretres.2019.104271 |bibcode=2020CrRes.10604271M |s2cid=210302354 }} the study is subsequently criticized by Buffetaut & Angst (2020).{{cite journal |author1=Eric Buffetaut |author2=Delphine Angst |year=2020 |title=Gargantuavis is an insular basal ornithurine: a comment on Mayr et al., 2020, 'A well-preserved pelvis from the Maastrichtian of Romania suggests that the enigmatic Gargantuavis is neither an ornithurine bird nor an insular endemic' |journal=Cretaceous Research |volume=112 |pages=Article 104438 |doi=10.1016/j.cretres.2020.104438 |bibcode=2020CrRes.11204438B |s2cid=219047539 }}{{cite journal |author1=Gerald Mayr |author2=Vlad Codrea |author3=Alexandru Solomon |author4=Marian Bordeianu |author5=Thierry Smith |year=2020 |title=Reply to comments on "A well-preserved pelvis from the Maastrichtian of Romania suggests that the enigmatic Gargantuavis is neither an ornithurine bird nor an insular endemic" |journal=Cretaceous Research |volume=112 |pages=Article 104465 |doi=10.1016/j.cretres.2020.104465 |bibcode=2020CrRes.11204465M |s2cid=216228480 }}
• A study on the evolution of body size of palaeognath birds is published by Crouch & Clarke (2019).{{Cite journal|author1=Nicholas M.A. Crouch |author2=Julia A. Clarke |year=2019 |title=Body size evolution in palaeognath birds is consistent with Neogene cooling-linked gigantism |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=532 |pages=Article 109224 |doi=10.1016/j.palaeo.2019.05.046 |bibcode=2019PPP...53209224C |s2cid=195546508 }}
• A study on the hindlimb anatomy and phylogenetic relationships of Palaeotis weigelti is published by Mayr (2019).{{cite journal |author=Gerald Mayr |year=2019 |title=Hindlimb morphology of Palaeotis suggests palaeognathous affinities of the Geranoididae and other "crane-like" birds from the Eocene of the Northern Hemisphere |journal=Acta Palaeontologica Polonica |volume=64 |issue=4 |pages=669–678 |doi=10.4202/app.00650.2019 |doi-access=free }}
• A study on wing anatomy, body mass, wing surface area, wing span and probable flight parameters of Calciavis grandei is published online by Torres, Norell & Clarke (2019).{{Cite journal|author1=Christopher R. Torres |author2=Mark A. Norell |author3=Julia A. Clarke |year=2019 |title=Estimating flight style of Early Eocene stem palaeognath bird Calciavis grandei (Lithornithidae) |journal=The Anatomical Record |volume=303 |issue=4 |pages=1035–1042 |doi=10.1002/ar.24207 |pmid=31313482 |s2cid=197423827 |doi-access=free }}
• A study on changes of ostrich eggshell bead diameter throughout the Holocene, testing the proposed relationship between changes of ostrich eggshell bead diameter and the spread of herding in Africa, is published by Miller & Sawchuk (2019).{{Cite journal|author1=Jennifer M. Miller |author2=Elizabeth A. Sawchuk |year=2019 |title=Ostrich eggshell bead diameter in the Holocene: Regional variation with the spread of herding in eastern and southern Africa |journal=PLOS ONE |volume=14 |issue=11 |pages=e0225143 |doi=10.1371/journal.pone.0225143 |pmid=31774851 |pmc=6880992 |bibcode=2019PLoSO..1425143M |doi-access=free }}
• A study on the taxonomic identification of rhea bones from four archaeological sites in the Mendoza Province (Argentina), based on genetic data, is published by Abbona et al. (2019).{{cite journal |author1=Cinthia Carolina Abbona |author2=Ophélie Lebrasseur |author3=Jeff Johnson |author4=Miguel Giardina |author5=Gustavo Neme |author6=Steve Wolverton |year=2019 |title=Analysis of ancient DNA from South American rhea bones: Implications for zooarchaeology and biogeography |journal=Journal of Archaeological Science: Reports |volume=25 |pages=624–631 |doi=10.1016/j.jasrep.2019.05.035 |bibcode=2019JArSR..25..624A |s2cid=189982843 }}
• A study aiming to evaluate whether introduced deer and hares fill the same ecological niches as extinct moa birds in New Zealand, as indicated by data from pollen extracted from moa coprolites and mammal feces, is published by Wood & Wilmshurst (2019).{{Cite journal|author1=Jamie R. Wood |author2=Janet M. Wilmshurst |year=2019 |title=Comparing the effects of asynchronous herbivores on New Zealand montane vegetation communities |journal=PLOS ONE |volume=14 |issue=4 |pages=e0214959 |doi=10.1371/journal.pone.0214959 |pmid=30947249 |pmc=6448933 |bibcode=2019PLoSO..1414959W |doi-access=free }}
• A study on the anatomy of the cancellous bone in the femur, tibiotarsus and fibula of three moa species is published by Bishop, Scofield & Hocknull (2019).{{cite journal |author1=Peter J. Bishop |author2=R. Paul Scofield |author3=Scott A. Hocknull |year=2019 |title=The architecture of cancellous bone in the hindlimb of moa (Aves: Dinornithiformes), with implications for stance and gait |journal=Alcheringa: An Australasian Journal of Palaeontology |volume=43 |issue=4 |pages=612–628 |doi=10.1080/03115518.2019.1594380 |bibcode=2019Alch...43..612B |s2cid=164788521 |url=https://researchonline.rvc.ac.uk/id/eprint/12108/1/12108.pdf }}
• A study on population densities and on the relationship between body mass and population densities in moa birds is published online by Latham et al. (2019).{{cite journal |author1=A. David M. Latham |author2=M. Cecilia Latham |author3=Janet M. Wilmshurst |author4=David M. Forsyth |author5=Andrew M. Gormley |author6=Roger P. Pech |author7=George L. W. Perry |author8=Jamie R. Wood |year=2020 |title=A refined model of body mass and population density in flightless birds reconciles extreme bimodal population estimates for extinct moa |journal=Ecography |volume=43 |issue=3 |pages= 353–364|doi=10.1111/ecog.04917 |doi-access=free |bibcode=2020Ecogr..43..353L }}
• A femur of a very large specimen of "Struthio" dmanisensis is described from the Early Pleistocene of the Crimean Peninsula by Zelenkov et al. (2019), who transfer this species to the genus Pachystruthio and estimate body mass of this species.{{cite journal |author1=Nikita V. Zelenkov |author2=Alexander V. Lavrov |author3=Dmitry B. Startsev |author4=Innessa A. Vislobokova |author5=Alexey V. Lopatin |year=2019 |title=A giant early Pleistocene bird from eastern Europe: unexpected component of terrestrial faunas at the time of early Homo arrival |journal=Journal of Vertebrate Paleontology |volume=39 |issue=2 |pages=e1605521 |doi=10.1080/02724634.2019.1605521 |bibcode=2019JVPal..39E5521Z |s2cid=198384367 }}
• A study on the microstructure of the bones of Vegavis iaai is published by Garcia Marsà, Agnolín & Novas (2019).{{Cite journal|author1=Jordi Alexis Garcia Marsà |author2=Federico L. Agnolín |author3=Fernando Novas |year=2019 |title=Bone microstructure of Vegavis iaai (Aves, Anseriformes) from the Upper Cretaceous of Vega Island, Antarctic Peninsula |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=2 |pages=163–167 |doi=10.1080/08912963.2017.1348503 |bibcode=2019HBio...31..163M |s2cid=133907659 }}
• Eggshells and a small ovoid-shaped egg of neognathous birds, probably members of the family Presbyornithidae, as well as a carpometacarpus of a presbyornithid are described from the Eocene of the Glib Zegdou Formation (Algeria) by Garcia et al. (2019).{{Cite journal|author1=Géraldine Garcia |author2=Cécile Mourer-Chauviré |author3=Mohammed Adaci |author4=Mustapha Bensalah |author5=Fateh Mebrouk |author6=Xavier Valentin |author7=M'hammed Mahboubi |author8=Rodolphe Tabuce |year=2020 |title=First discovery of avian egg and bone remains (Presbyornithidae) from the Gour Lazib (Eocene, Algeria) |journal=Journal of African Earth Sciences |volume=162 |pages=Article 103666 |doi=10.1016/j.jafrearsci.2019.103666 |bibcode=2020JAfES.16203666G |s2cid=210607715 |url=https://hal.umontpellier.fr/hal-03046269/file/Garcia-et-al-2020.pdf }}
• A study on the putative cariamiform femur from the Maastrichtian Sandwich Bluff Member of the Lopez de Bertodano Formation (Vega Island, Antarctica) reported by Case et al. (2006){{Cite journal|author1=Judd A. Case |author2=Marcelo Reguero |author3=James E. Martin |author4=Amanda Cordes-Person |year=2006 |title=A cursorial bird from the Maastrichtian of Antarctica |journal=Journal of Vertebrate Paleontology |volume=26 |issue=Supplement to Number 3 |pages=48A |doi=10.1080/02724634.2006.10010069 |s2cid=220413406 }} is published by West et al. (2019), who reinterpret this specimen as a fossil of an unnamed large-bodied member of the genus Vegavis.{{cite journal |author1=Abagael R. West |author2=Christopher R. Torres |author3=Judd A. Case |author4=Julia A. Clarke |author5=Patrick M. O'Connor |author6=Matthew C. Lamanna |year=2019 |title=An avian femur from the Late Cretaceous of Vega Island, Antarctic Peninsula: removing the record of cursorial landbirds from the Mesozoic of Antarctica |journal=PeerJ |volume=7 |pages=e7231 |doi=10.7717/peerj.7231 |pmid=31333904 |pmc=6626523 |doi-access=free }}
• A study on the holotype specimen and other fossils attributed to the species Cayaoa bruneti is published by De Mendoza & Tambussi (2019), who present a revised diagnosis of this species.{{cite journal |author1=Ricardo Santiago De Mendoza |author2=Claudia P. Tambussi |year=2019 |title=Cayaoa bruneti (Aves: Anseriformes) from the Early Miocene of Patagonia, Argentina: new materials and revised diagnosis |journal=Ameghiniana |volume=56 |issue=3 |pages=213–227 |doi=10.5710/AMGH.24.05.2019.3199 |s2cid=195535034 }}
• A study on the phylogenetic relationships of Cayaoa bruneti is published by De Mendoza (2019).{{Cite journal|author=Ricardo S. De Mendoza |year=2019 |title=Phylogenetic relationships of the Early Miocene diving and flightless duck Cayaoa bruneti (Aves, Anatidae) from Patagonia: homology or convergence? |journal=Papers in Palaeontology |volume=5 |issue=4 |pages=743–751 |doi=10.1002/spp2.1268 |bibcode=2019PPal....5..743D |s2cid=196650908 }}
• A study on the Cenozoic fossil record of anatids from Eurasia is published by Zelenkov (2019).{{Cite journal|author=N.V. Zelenkov |year=2019 |title=Cenozoic evolution of Eurasian anatids (Aves: Anatidae s. l.) |journal=Zhurnal Obshcheĭ Biologii |volume=80 |issue=5 |pages=323–333 |doi=10.1134/S2079086420050096 |bibcode=2020BioBR..10..417Z |url=https://www.researchgate.net/publication/335501012 }}
• A study on the morphology of the postcranial skeleton of the Oligocene-Miocene galliform Palaeortyx, and on the phylogenetic relationships of this taxon, is published by Zelenkov (2019).{{Cite journal|author=N.V. Zelenkov |year=2019 |title=Systematic position of Palaeortyx (Aves, ?Phasianidae) and notes on the evolution of Phasianidae |journal=Paleontological Journal |volume=53 |issue=2 |pages=194–202 |doi=10.1134/S0031030119020138 |bibcode=2019PalJ...53..194Z |s2cid=195319349 |url=https://www.researchgate.net/publication/332332523 }}
• A study on the phylogenetic relationships of extant and fossil members of Strisores is published by Chen et al. (2019).{{Cite journal|author1=Albert Chen |author2=Noor D. White |author3=Roger B.J. Benson |author4=Michael J. Braun |author5=Daniel J. Field |year=2019 |title=Total-evidence framework reveals complex morphological evolution in nightbirds (Strisores) |journal=Diversity |volume=11 |issue=9 |pages=Article 143 |doi=10.3390/d11090143 |doi-access=free |bibcode=2019Diver..11..143C }}
• Description of new fossil material of Pellornis mikkelseni, providing new information on the anatomy of this species, and a study on the phylogenetic relationships of this species is published by Musser, Ksepka & Field (2019).{{Cite journal|author1=Grace Musser |author2=Daniel T. Ksepka |author3=Daniel J. Field |year=2019 |title=New material of Paleocene-Eocene Pellornis (Aves: Gruiformes) clarifies the pattern and timing of the extant gruiform radiation |journal=Diversity |volume=11 |issue=7 |pages=Article 102 |doi=10.3390/d11070102 |doi-access=free |bibcode=2019Diver..11..102M }}
• A study on the phylogenetic relationships of the adzebills, as indicated by data from near-complete mitochondrial genome sequences, is published by Boast et al. (2019).{{Cite journal|author1=Alexander P. Boast |author2=Brendan Chapman |author3=Michael B. Herrera |author4=Trevor H. Worthy |author5=R. Paul Scofield |author6=Alan J. D. Tennyson |author7=Peter Houde |author8=Michael Bunce |author9=Alan Cooper |author10=Kieren J. Mitchell |year=2019 |title=Mitochondrial genomes from New Zealand's extinct adzebills (Aves: Aptornithidae: Aptornis) support a sister-taxon relationship with the Afro-Madagascan Sarothruridae |journal=Diversity |volume=11 |issue=2 |pages=Article 24 |doi=10.3390/d11020024 |doi-access=free |bibcode=2019Diver..11...24B |hdl=2440/119533 |hdl-access=free }}
• A study on the phylogenetic relationships of the adzebills, as indicated by morphological and molecular data, is published by Musser & Cracraft (2019).{{Cite journal|author1=Grace M. Musser |author2=Joel Cracraft |year=2019 |title=A new morphological dataset reveals a novel relationship for the adzebills of New Zealand (Aptornis) and provides a foundation for total evidence neoavian phylogenetics |journal=American Museum Novitates |issue=3927 |pages=1–70 |doi=10.1206/3927.1 |hdl=2246/6937 |s2cid=155704891 |url=https://www.biodiversitylibrary.org/item/266597 }}
• A study on two humeri of rails belonging to the genus Dryolimnas from the Pleistocene of the Picard Island (Seychelles) is published by Hume & Martill (2019), who interpret these humeri as bones of a flightless rail, and consider them to be evidence of repeated evolution flightlessness in members of the genus Dryolimnas inhabiting the Aldabra Atoll – before the atoll was completely submerged in the late Pleistocene, as well as after it emerged from the ocean again.{{Cite journal|author1=Julian P. Hume |author2=David Martill |year=2019 |title=Repeated evolution of flightlessness in Dryolimnas rails (Aves: Rallidae) after extinction and recolonization on Aldabra |journal=Zoological Journal of the Linnean Society |volume=186 |issue=3 |pages=666–672 |doi=10.1093/zoolinnean/zlz018 }}
• A study on the phylogenetic relationships and evolutionary history of living and extinct flightless lineages of the white-throated rail from the Aldabra Group is published by van de Crommenacker et al. (2019).{{Cite journal|author1=Janske van de Crommenacker |author2=Nancy Bunbury |author3=Hazel A. Jackson |author4=Lisa J. Nupen |author5=Ross Wanless |author6=Frauke Fleischer-Dogley |author7=Jim J. Groombridge |author8=Ben H. Warren |year=2019 |title=Rapid loss of flight in the Aldabra white-throated rail |journal=PLOS ONE |volume=14 |issue=12 |pages=e0226064 |doi=10.1371/journal.pone.0226064 |pmid=31869373 |pmc=6927662 |bibcode=2019PLoSO..1426064V |doi-access=free }}
• A revision of extinct endemic rails of the Mascarene Islands and a study on their ecology and extinction chronologies is published by Hume (2019).
• A study on the taxonomic status of the Canary Islands oystercatcher (Haematopus meadewaldoi) is published online by Senfeld et al. (2019).{{Cite journal|author1=Tereza Senfeld |author2=Thomas J. Shannon |author3=Hein Van Grouw |author4=Dane M. Paijmans |author5=Erika S. Tavares |author6=Allan J. Baker |author7=Alexander C. Lees |author8=J. Martin Collinson |year=2019 |title=Taxonomic status of the extinct Canary Islands Oystercatcher Haematopus meadewaldoi |journal=Ibis |volume=162 |issue=3 |pages=1068–1074 |doi=10.1111/ibi.12778 |hdl=2164/15137 |s2cid=202852004 |url=https://e-space.mmu.ac.uk/624061/1/Accepted%20Article%20Senfeld_et_al-2019-Ibis.pdf }}
• A study on the fossil material attributed to the species Becassius charadriioides is published online by De Pietri, Mayr & Scofield (2019), who assign this species to the family Glareolidae.{{Cite journal|author1=Vanesa L. De Pietri |author2=Gerald Mayr |author3=R. Paul Scofield |year=2019 |title=Becassius charadriioides, an early Miocene pratincole-like bird from France: with comments on the early evolutionary history of the Glareolidae (Aves, Charadriiformes) |journal=PalZ |volume=94 |issue=1 |pages=107–124 |doi=10.1007/s12542-019-00469-8 |s2cid=197556472 }}
• A nearly complete tarsometatarsus of the least seedsnipe (Thinocorus rumicivorus) is described from the Ensenadan of Argentina by Picasso, De Mendoza & Gelfo (2019).{{Cite journal|author1=Mariana B. J. Picasso |author2=Ricardo S. De Mendoza |author3=Javier N. Gelfo |year=2019 |title=A seedsnipe (Aves, Charadriiformes, Thinocoridae) from the Ensenadan Age/Stage (early-middle Pleistocene) of Buenos Aires, Argentina |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=3 |pages=363–370 |doi=10.1080/08912963.2017.1370647 |bibcode=2019HBio...31..363P |s2cid=134535674 |url=http://sedici.unlp.edu.ar/handle/10915/105308 |hdl=11336/49644 |hdl-access=free }}
• A study aiming to determine the drivers of the extinction of the great auk, based on data from mitochondrial genome sequences from across its geographic range, is published by Thomas et al. (2019).{{Cite journal|author1=Jessica E Thomas |author2=Gary R Carvalho |author3=James Haile |author4=Nicolas J Rawlence |author5=Michael D Martin |author6=Simon YW Ho |author7=Arnór Þ Sigfússon |author8=Vigfús A Jósefsson |author9=Morten Frederiksen |author10=Jannie F Linnebjerg |author11=Jose A Samaniego Castruita |author12=Jonas Niemann |author13=Mikkel-Holger S Sinding |author14=Marcela Sandoval-Velasco |author15=André ER Soares |author16=Robert Lacy |author17=Christina Barilaro |author18=Juila Best |author19=Dirk Brandis |author20=Chiara Cavallo |author21=Mikelo Elorza |author22=Kimball L Garrett |author23=Maaike Groot |author24=Friederike Johansson |author25=Jan T Lifjeld |author26=Göran Nilson |author27=Dale Serjeanston |author28=Paul Sweet |author29=Errol Fuller |author30=Anne Karin Hufthammer |author31=Morten Meldgaard |author32=Jon Fjeldså |author33=Beth Shapiro |author34=Michael Hofreiter |author35=John R Stewart |author36=M Thomas P Gilbert |author37=Michael Knap |year=2019 |title=Demographic reconstruction from ancient DNA supports rapid extinction of the great auk |journal=eLife |volume=8 |pages=e47509 |doi=10.7554/eLife.47509 |pmid=31767056 |pmc=6879203 |doi-access=free }}
• Pedal phalanx of a penguin affected by osteomyelitis is described from the Eocene of West Antarctica by Jadwiszczak & Rothschild (2019).{{cite journal |author1=Piotr Jadwiszczak |author2=Bruce M. Rothschild |year=2019 |title=The first evidence of an infectious disease in early penguins |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=2 |pages=177–180 |doi=10.1080/08912963.2017.1353606 |bibcode=2019HBio...31..177J |s2cid=91005097 }}
• A set of skeletal elements of a penguin attributable to the species Delphinornis larseni, providing new information on the anatomy of this species, is described from the Eocene Submeseta Formation (Seymour Island, Antarctica) by Jadwiszczak & Mörs (2019).{{cite journal |author1=Piotr Jadwiszczak |author2=Thomas Mörs |year=2019 |title=First partial skeleton of Delphinornis larseni Wiman, 1905, a slender-footed penguin from the Eocene of Antarctic Peninsula |journal=Palaeontologia Electronica |volume=22 |issue=2 |pages=Article number 22.2.32 |doi=10.26879/933 |doi-access=free }}
• The first skull reliably assigned to Anthropornis grandis is described from the Eocene (Bartonian) Submeseta Formation (Seymour Island, Antarctica) by Acosta Hospitaleche et al. (2019).{{cite journal |author1=Carolina Acosta Hospitaleche |author2=Nadia Haidr |author3=Ariana Paulina-Carabajal |author4=Marcelo Reguero |year=2019 |title=The first skull of Anthropornis grandis (Aves, Sphenisciformes) associated with postcranial elements |journal=Comptes Rendus Palevol |volume=18 |issue=6 |pages=599–617 |doi=10.1016/j.crpv.2019.06.003 |bibcode=2019CRPal..18..599A |doi-access=free |hdl=11336/121923 |hdl-access=free }}
• A study on the holotype specimen of Tereingaornis moisleyi, evaluating the taxonomic validity of this species, is published online by Thomas et al. (2019).{{cite journal |author1=Daniel B. Thomas |author2=Daniel T. Ksepka |author3=Emma J. Holvast |author4=Alan J. D. Tennyson |author5=Paul Scofield |year=2019 |title=Re-evaluating New Zealand's endemic Pliocene penguin genus |journal=New Zealand Journal of Geology and Geophysics |volume=63 |issue= 3|pages= 324–330|doi=10.1080/00288306.2019.1699583 |s2cid=213289076 }}
• A fossil humerus of the Magellanic penguin or a relative of this species is described from Uruguay by Acosta Hospitaleche et al. (2019), representing the first fossil of a penguin from Uruguay reported so far.{{cite journal |author1=Carolina Acosta Hospitaleche |author2=Washington W. Jones |author3=Felipe H. Montenegro |author4=Andrés Rinderknecht |author5=Deyvit Chappore |year=2019 |title=First penguin fossil (Aves, Spheniscidae) from Uruguay |journal=Journal of South American Earth Sciences |volume=96 |pages=Article 102332 |doi=10.1016/j.jsames.2019.102332 |bibcode=2019JSAES..9602332A |s2cid=202899752 }}
• A study on changes in the population size of the Adélie penguin colonies and relative krill abundance in the Prydz Bay (Antarctica) during the 2nd millennium, as indicated by data from ornithogenic sediment cores from the Vestfold Hills, will be published by Gao et al. (2019).{{cite journal |author1=Yuesong Gao |author2=Lianjiao Yang |author3=Wenqing Yang |author4=Yuhong Wang |author5=Zhouqing Xie |author6=Liguang Sun |year=2019 |title=Dynamics of penguin population size and food availability at Prydz Bay, East Antarctica, during the last millennium: A solar control |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=516 |pages=220–231 |doi=10.1016/j.palaeo.2018.11.027 |bibcode=2019PPP...516..220G |s2cid=134166687 }}
• A vertebra of a stork similar to the maguari stork is described from the late Pleistocene of the Santa Vitória Formation (Rio Grande do Sul, Brazil) by Lopes, Pereira & Ferigolo (2019), who evaluate the implications of this finding for reconstructions of local paleoenvironment.{{Cite journal|author1=Renato Pereira Lopes |author2=Jamil Corrêa Pereira |author3=Jorge Ferigolo |year=2019 |title=A late Pleistocene fossil stork (Ciconiiformes: Ciconiidae) from the Santa Vitória Formation, Southern Brazil and its paleoenvironmental significance |journal=Revista Brasileira de Paleontologia |volume=22 |issue=3 |pages=199–216 |doi=10.4072/rbp.2019.3.03 |doi-access=free }}
• Restudy of a putative bill of an ibis-like bird from the Eocene La Meseta Formation (Antarctica) described by Jadwiszczak, Gaździcki & Tatur (2008){{cite journal |author1=Piotr Jadwiszczak |author2=Andrzej Gaździcki |author3=Andrzej Tatur |year=2008 |title=An ibis-like bird from the Upper La Meseta Formation (Late Eocene) of Seymour Island, Antarctica |journal=Antarctic Science |volume=20 |issue=4 |pages=413–414 |doi=10.1017/S0954102008000977 |s2cid=128551334 }} is published by Agnolin, Bogan & Rozadilla (2019), who consider this specimen to be more likely to be a dorsal spine of a chimaeroid cartilaginous fish.{{cite journal |author1=Federico Lisandro Agnolin |author2=Sergio Bogan |author3=Sebastián Rozadilla |year=2019 |title=Were ibises (Aves, Threskiornithidae) present in Antarctica? |journal=Antarctic Science |volume=31 |issue=1 |pages=35–36 |doi=10.1017/S0954102018000512 |s2cid=134545946 }}
• A study on the body mass evolution in the clade Telluraves, incorporating data from 76 extinct species, is published by Crouch & Mason-Gamer (2019).{{Cite journal|author1=Nicholas M. A. Crouch |author2=Roberta Mason-Gamer |year=2019 |title=Mass estimation of extinct taxa and phylogenetic hypotheses both influence analyses of character evolution in a large clade of birds (Telluraves) |journal=Proceedings of the Royal Society B: Biological Sciences |volume=286 |issue=1917 |pages=Article ID 20191745 |doi=10.1098/rspb.2019.1745 |pmid=31847761 |pmc=6939909 }}
• A study on the demographic history of the Andean condors in southern South America and on the causes of their survival of late Quaternary megafauna extinctions is published by Perrig et al. (2019).{{cite journal |author1=Paula L. Perrig |author2=Emily D. Fountain |author3=Sergio A. Lambertucci |author4=Jonathan N. Pauli |year=2019 |title=Demography of avian scavengers after Pleistocene megafaunal extinction |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 9680 |doi=10.1038/s41598-019-45769-w |pmid=31273237 |pmc=6609603 |bibcode=2019NatSR...9.9680P }}
• Hindlimb bones of an extinct eagle of uncertain phylogenetic placement are described from the late Quaternary of Hispaniola by Steadman, Milan & Mychajliw (2019).{{cite journal |author1=David W. Steadman |author2=Juan N. Almonte Milan |author3=Alexis M. Mychajliw |year=2019 |title=An extinct eagle (Aves: Accipitridae) from the Quaternary of Hispaniola |journal=Journal of Raptor Research |volume=53 |issue=3 |pages=319–333 |doi=10.3356/JRR-18-769 |s2cid=199571353 }}
• A study on the origin and evolution of the Haast's eagle and the Eyles's harrier, as indicated by complete mitochondrial genome data, is published by Knapp et al. (2019).{{cite journal |author1=Michael Knapp |author2=Jessica E. Thomas |author3=James Haile |author4=Stefan Prost |author5=Simon Y.W. Ho |author6=Nicolas Dussex |author7=Sophia Cameron-Christie |author8=Olga Kardailsky |author9=Ross Barnett |author10=Michael Bunce |author11=M. Thomas P. Gilbert |author12=R. Paul Scofield |year=2019 |title=Mitogenomic evidence of close relationships between New Zealand's extinct giant raptors and small-sized Australian sister-taxa |journal=Molecular Phylogenetics and Evolution |volume=134 |pages=122–128 |doi=10.1016/j.ympev.2019.01.026 |pmid=30753886 |bibcode=2019MolPE.134..122K |s2cid=73420145 }}
• Evidence from Neanderthal-associated sites in Europe indicating that Neanderthals practiced catching the golden eagles is presented by Finlayson et al. (2019).{{Cite journal|author1=Stewart Finlayson |author2=Geraldine Finlayson |author3=Francisco Giles Guzman |author4=Clive Finlayson |year=2019 |title=Neanderthals and the cult of the Sun Bird |journal=Quaternary Science Reviews |volume=217 |pages=217–224 |doi=10.1016/j.quascirev.2019.04.010 |bibcode=2019QSRv..217..217F |s2cid=149949579 }}
• Evidence of Châtelperronian Neanderthals using pedal phalanges of imperial eagles for symbolic practices is reported from the Cova Foradà site (Spain) by Rodríguez-Hidalgo et al. (2019).{{cite journal |author1=A. Rodríguez-Hidalgo |author2=J. I. Morales |author3=A. Cebrià |author4=L. A. Courtenay |author5=J. L. Fernández-Marchena |author6=G. García-Argudo |author7=J. Marín |author8=P. Saladié |author9=M. Soto |author10=J.-M. Tejero |author11=J.-M. Fullola |year=2019 |title=The Châtelperronian Neanderthals of Cova Foradada (Calafell, Spain) used imperial eagle phalanges for symbolic purposes |journal=Science Advances |volume=5 |issue=11 |pages=eaax1984 |doi=10.1126/sciadv.aax1984 |pmid=31701003 |pmc=6824858 |bibcode=2019SciA....5.1984R }}
• A study on the impact of the climate changes of the last 35,000 years on the long-eared owls and burrowing owls, as indicated by data from fossils from the La Brea Tar Pits, is published by Madan, Prothero & Syverson (2019).{{cite journal |author1=Meena Madan |author2=Donald R. Prothero |author3=Valerie J.P. Syverson |year=2019 |title=Stasis in the smaller owls from Rancho La Brea during the last glacial-interglacial climate change |journal=Palaeontologia Electronica |volume=22 |issue=3 |pages=Article number 22.3.70 |doi=10.26879/960 |doi-access=free |hdl=1983/66a94d7f-e065-40cb-8a90-55c954884cf4 |hdl-access=free }}
• A study on the geographical origin and evolutionary history of Coraciiformes, based on data from extant taxa and from fossils, is published by McCullough et al. (2019).{{Cite journal|author1=Jenna M. McCullough |author2=Robert G. Moyle |author3=Brian T. Smith |author4=Michael J. Andersen |year=2019 |title=A Laurasian origin for a pantropical bird radiation is supported by genomic and fossil data (Aves: Coraciiformes) |journal=Proceedings of the Royal Society B: Biological Sciences |volume=286 |issue=1910 |pages=Article ID 20190122 |doi=10.1098/rspb.2019.0122 |pmid=31506056 |pmc=6742990 }}
• New skull remains of Phorusrhacos longissimus are described from the Cerro de los fósiles site in the Miocene Santa Cruz Formation (Argentina) by Degrange et al. (2019).{{Cite journal|author1=Federico J. Degrange |author2=Drew Eddy |author3=Pablo Puerta |author4=Julia Clarke |year=2019 |title=New skull remains of Phorusrhacos longissimus (Aves, Cariamiformes) from the Miocene of Argentina: implications for the morphology of Phorusrhacidae |journal=Journal of Paleontology |volume=93 |issue=6 |pages=1221–1233 |doi=10.1017/jpa.2019.53 |bibcode=2019JPal...93.1221D |s2cid=199094122 |doi-access=free }}
• A study on the phylogenetic relationships of the Bahaman caracara, based on data from a nearly complete mitochondrial genome recovered from a bone of a member of this species, is published by Oswald et al. (2019).{{Cite journal|author1=Jessica A. Oswald |author2=Julia M. Allen |author3=Kelsey E. Witt |author4=Ryan A. Folk |author5=Nancy A. Albury |author6=David W. Steadman |author7=Robert P. Guralnick |year=2019 |title=Ancient DNA from a 2,500-year-old Caribbean fossil places an extinct bird (Caracara creightoni) in a phylogenetic context |journal=Molecular Phylogenetics and Evolution |volume=140 |pages=Article 106576 |doi=10.1016/j.ympev.2019.106576 |pmid=31381968 |bibcode=2019MolPE.14006576O |s2cid=199452613 }}
• A study on the holotype specimen of Calcardea junnei is published by Mayr, Gingerich & Smith (2019), who reject the interpretation of this species as a heron, and claim that this bird resembled parrot-like taxon Vastanavis from the early Eocene of India.{{cite journal |author1=Gerald Mayr |author2=Philip D. Gingerich |author3=Thierry Smith |year=2019 |title=Calcardea junnei Gingerich, 1987 from the late Paleocene of North America is not a heron, but resembles the early Eocene Indian taxon Vastanavis Mayr et al., 2007 |journal=Journal of Paleontology |volume=93 |issue=2 |pages=359–367 |doi=10.1017/jpa.2018.85 |bibcode=2019JPal...93..359M |s2cid=134577618 }}
• A study on the identity of a parakeet specimen held at National Museums Scotland, interpreted as most likely originating from Mauritius by Cheke & Jansen (2016),{{Cite journal|author1=Anthony S. Cheke |author2=Justin J. F. J. Jansen |year=2016 |title=An enigmatic parakeet – the disputed provenance of an Indian Ocean Psittacula |journal=Ibis |volume=158 |issue=2 |pages=439–443 |doi=10.1111/ibi.12347 |doi-access=free }} is published by Jones et al. (2019), who consider this parakeet to be the only known skin specimen of extinct Réunion parakeet.{{Cite journal|author1=Carl G. Jones |author2=Hazel A. Jackson |author3=Robert Y. McGowan |author4=Julian P. Hume |author5=Joseph M. Forshaw |author6=Vikash Tatayah |author7=Ria Winters |author8=Jim J. Groombridge |year=2019 |title=A parakeet specimen held at National Museums Scotland is a unique skin of the extinct Réunion Parakeet Psittacula eques eques: a reply to Cheke and Jansen (2016) |journal=Ibis |volume=161 |issue=1 |pages=230–238 |doi=10.1111/ibi.12673 |doi-access=free |hdl=10141/622482 |hdl-access=free }}
• Complete genomic sequence of a specimen of the Carolina parakeet is generated by Gelabert et al. (2019), who evaluate the implications of their findings for the knowledge of the phylogenetic relationships of this species, its demographic history and adaptation to a toxic diet.{{cite journal |author1=Pere Gelabert |author2=Marcela Sandoval-Velasco |author3=Aitor Serres |author4=Marc de Manuel |author5=Pere Renom |author6=Ashot Margaryan |author7=Josefin Stiller |author8=Toni de-Dios |author9=Qi Fang |author10=Shaohong Feng |author11=Santi Mañosa |author12=George Pacheco |author13=Manuel Ferrando-Bernal |author14=Guolin Shi |author15=Fei Hao |author16=Xianqing Chen |author17=Bent Petersen |author18=Remi-André Olsen |author19=Arcadi Navarro |author20=Yuan Deng |author21=Love Dalén |author22=Tomàs Marquès-Bonet |author23=Guojie Zhang |author24=Agostinho Antunes |author25=M. Thomas P. Gilbert |author26=Carles Lalueza-Fox |year=2019 |title=Evolutionary history, genomic adaptation to toxic diet, and extinction of the Carolina parakeet |journal=Current Biology |volume=30 |issue= 1|pages= 108–114.e5|doi=10.1016/j.cub.2019.10.066 |pmid=31839456 |doi-access=free |hdl=10230/43920 |hdl-access=free }}
• A study on the phylogenetic relationships, biogeography and diversification rates of passerine birds throughout their evolutionary history, aiming to evaluate the impact of major events in Earth history on the evolution of passerines, is published by Oliveros et al. (2019).{{Cite journal|author1=Carl H. Oliveros |author2=Daniel J. Field |author3=Daniel T. Ksepka |author4=F. Keith Barker |author5=Alexandre Aleixo |author6=Michael J. Andersen |author7=Per Alström |author8=Brett W. Benz |author9=Edward L. Braun |author10=Michael J. Braun |author11=Gustavo A. Bravo |author12=Robb T. Brumfield |author13=R. Terry Chesser |author14=Santiago Claramunt |author15=Joel Cracraft |author16=Andrés M. Cuervo |author17=Elizabeth P. Derryberry |author18=Travis C. Glenn |author19=Michael G. Harvey |author20=Peter A. Hosner |author21=Leo Joseph |author22=Rebecca T. Kimball |author23=Andrew L. Mack |author24=Colin M. Miskelly |author25=A. Townsend Peterson |author26=Mark B. Robbins |author27=Frederick H. Sheldon |author28=Luís Fábio Silveira |author29=Brian Tilston Smith |author30=Noor D. White |author31=Robert G. Moyle |author32=Brant C. Faircloth |year=2019 |title=Earth history and the passerine superradiation |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=116 |issue=16 |pages=7916–7925 |doi=10.1073/pnas.1813206116 |pmid=30936315 |pmc=6475423 |bibcode=2019PNAS..116.7916O |doi-access=free }}
• Dussex et al. (2019) sequence whole genomes of the huia and the South Island kokako, and evaluate whether the loss of genomic diversity played a role in their extinction.{{Cite journal|author1=Nicolas Dussex |author2=Johanna von Seth |author3=Michael Knapp |author4=Olga Kardailsky |author5=Bruce C. Robertson |author6=Love Dalén |year=2019 |title=Complete genomes of two extinct New Zealand passerines show responses to climate fluctuations but no evidence for genomic erosion prior to extinction |journal=Biology Letters |volume=15 |issue=9 |pages=Article ID 20190491 |doi=10.1098/rsbl.2019.0491 |pmid=31480938 |pmc=6769136 }}
• A review of Cretaceous and Paleogene bird fossils from the James Ross Basin (Antarctica) is published by Acosta Hospitaleche et al. (2019).{{cite journal |author1=Carolina Acosta Hospitaleche |author2=Piotr Jadwiszczak |author3=Julia A. Clarke |author4=Marcos Cenizo |year=2019 |title=The fossil record of birds from the James Ross Basin, West Antarctica |journal=Advances in Polar Science |volume=30 |issue=3 |pages=251–273 |doi=10.13679/j.advps.2019.0014 }}
• A study on drivers of bird distribution shifts throughout the Cenozoic is published by Saupe et al. (2019).{{Cite journal|author1=Erin E. Saupe |author2=Alexander Farnsworth |author3=Daniel J. Lunt |author4=Navjit Sagoo |author5=Karen V. Pham |author6=Daniel J. Field |year=2019 |title=Climatic shifts drove major contractions in avian latitudinal distributions throughout the Cenozoic |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=116 |issue=26 |pages=12895–12900 |doi=10.1073/pnas.1903866116 |pmid=31182570 |pmc=6601418 |bibcode=2019PNAS..11612895S |doi-access=free }}
• A review of the bird fossil assemblage from the Paleocene locality of Menat (Puy-de-Dôme, France), including a new fossil specimen with exceptional soft tissue preservation, is published by Mayr, Hervet & Buffetaut (2019).{{cite journal |author1=Gerald Mayr |author2=Sophie Hervet |author3=Eric Buffetaut |year=2019 |title=On the diverse and widely ignored Paleocene avifauna of Menat (Puy-de-Dôme, France): new taxonomic records and unusual soft tissue preservation |journal=Geological Magazine |volume=156 |issue=3 |pages=572–584 |doi=10.1017/S0016756818000080 |bibcode=2019GeoM..156..572M |s2cid=133878360 }}
• New bird fossils, including the oldest European record of the Gastornithidae which is temporally well-constrained, are described from the Paleocene localities from the North Sea Basin in Belgium (Maret) and France (Templeuve and Rivecourt-Petit Pâtis) by Mayr & Smith (2019).{{Cite journal|author1=Gerald Mayr |author2=Thierry Smith |year=2019 |title=New Paleocene bird fossils from the North Sea Basin in Belgium and France |journal=Geologica Belgica |volume=22 |issue=1–2 |pages=35–46 |doi=10.20341/gb.2019.003 |doi-access=free }}
• A revision of bird fossils from the Eocene (Ypresian) fossil sites of the North American Okanagan Highlands, mainly in British Columbia (Canada), is published by Mayr et al. (2019), who report, among other findings, a skeleton of a possible member of the family Songziidae, and fossil wings which might constitute the earliest known record of Gaviiformes.{{cite journal |author1=Gerald Mayr |author2=S. Bruce Archibald |author3=Gary Kaiser |author4=Rolf W. Mathewes |year=2019 |title=Early Eocene (Ypresian) birds from the Okanagan Highlands, British Columbia (Canada) and Washington State (USA) |journal=Canadian Journal of Earth Sciences |volume=56 |issue=8 |pages=803–813 |doi=10.1139/cjes-2018-0267 |bibcode=2019CaJES..56..803M |s2cid=135271937 }}
• An assemblage of 54 bird bones from early Eocene marine sediments of the Ampe quarry near Egem in Belgium is described by Mayr & Smith (2019).{{Cite journal|author1=Gerald Mayr |author2=Thierry Smith |year=2019 |title=A diverse bird assemblage from the Ypresian of Belgium furthers knowledge of early Eocene avifaunas of the North Sea Basin |journal=Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen |volume=291 |issue=3 |pages=253–281 |doi=10.1127/njgpa/2019/0801 |s2cid=243569467 }}
• New Eocene bird fossils, including remains of members of Pan-Charadriiformes, a member of Pan-Mirandornithes and a member or a relative of the family Quercymegapodiidae, are described from the Bumban Member of the Naranbulag Formation (Mongolia) by Hood et al. (2019).{{Cite journal|author1=Sarah C. Hood |author2=Chris R. Torres |author3=Mark A. Norell |author4=Julia A. Clarke |year=2019 |title=New fossil birds from the earliest Eocene of Mongolia |journal=American Museum Novitates |issue=3934 |pages=1–24 |doi=10.1206/3934.1 |hdl=2246/6956 |s2cid=199571350 |url=https://www.biodiversitylibrary.org/item/271741 }}
• Flamingo-like and anatid-like fossil bird footprints are described from the Vinchina Formation (Argentina) by Farina et al. (2019), who name new ichnotaxa Phoenicopterichnum lucioi and P. vinchinaensis.{{cite journal |author1=Martin Ezequiel Farina |author2=Verónica Krapovickas |author3=Lucas Fernández Piana |author4=Rocío Belen Vera |author5=María De Los Ángeles Ordoñez |year=2019 |title=Flamingo-like footprints and the problem of addressing biological diversity in the past |journal=Historical Biology: An International Journal of Paleobiology |volume=33 |issue=7 |pages=912–926 |doi=10.1080/08912963.2019.1669024 |s2cid=208582248 }}
• A study on the date of extinction of the Tristan moorhen, the Inaccessible Island finch and the Tristan albatross on the main island of the Tristan da Cunha archipelago, aiming to place these extinctions in the context of the changing island ecosystems of the nineteenth and early twentieth centuries, is published by Bond, Carlson & Burgio (2019).{{cite journal |author1=Alexander L. Bond |author2=Colin J. Carlson |author3=Kevin R. Burgio |year=2019 |title=Local extinctions of insular avifauna on the most remote inhabited island in the world |journal=Journal of Ornithology |volume=160 |issue=1 |pages=49–60 |doi=10.1007/s10336-018-1590-8 |bibcode=2019JOrni.160...49B |hdl=10141/622447 |s2cid=52049042 |hdl-access=free }}
• Description of a fossil bird assemblage from the early Pliocene of the Na Burguesa-1 site (Mallorca, Spain) is published by Torres-Roig et al. (2019).{{Cite journal|author1=Enric Torres-Roig |author2=Anna Díaz |author3=Pere Bover |author4=Josep Antoni Alcover |year=2019 |title=A palaeornithological assemblage from the early Pliocene of the Mediterranean island of Mallorca: Raptorial birds as bioaccumulators at Na Burguesa-1 |journal=Comptes Rendus Palevol |volume=18 |issue=8 |pages=997–1010 |doi=10.1016/j.crpv.2019.08.003 |bibcode=2019CRPal..18..997T |doi-access=free }}
• A study on the impact of Plio-Pleistocene environmental changes on the bird fauna of New Zealand is published by Rawlence et al. (2019).{{Cite journal|author1=Nicolas J. Rawlence |author2=R. Paul Scofield |author3=Matt S. McGlone |author4=Michael Knapp |year=2019 |title=History repeats: large scale synchronous biological turnover in avifauna from the Plio-Pleistocene and late Holocene of New Zealand |journal=Frontiers in Ecology and Evolution |volume=7 |pages=Article 158 |doi=10.3389/fevo.2019.00158 |s2cid=153310758 |doi-access=free }}
• Description of Late Pleistocene and Holocene bird remains from Jerimalai and Matja Kuru 1 sites in East Timor will be published by Meijer, Louys & O'Connor (2019).{{Cite journal|author1=Hanneke J.M. Meijer |author2=Julien Louys |author3=Sue O'Connor |author-link3=Sue O'Connor |year=2019 |title=First record of avian extinctions from the Late Pleistocene and Holocene of Timor Leste |journal=Quaternary Science Reviews |volume=203 |pages=170–184 |doi=10.1016/j.quascirev.2018.11.005 |bibcode=2019QSRv..203..170M |s2cid=134892348 |hdl=1885/187230 |hdl-access=free }}
• Description of bird remains from the Grotta di Castelcivita site (Italy) and a study on their implications for the knowledge of local environment and human-bird interactions in the Paleolithic is published by Fiore et al. (2019).{{Cite journal|author1=Ivana Fiore |author2=Monica Gala |author3=Francesco Boschin |author4=Jacopo Crezzini |author5=Antonio Tagliacozzo |author6=Adriana Moroni |year=2019 |title=Archeozoology and taphonomy of bird remains from Grotta di Castelcivita (Salerno, Italy) and clues for human-bird interactions |journal=Quaternary International |volume=551 |pages= 224–242|doi=10.1016/j.quaint.2019.09.004 |hdl=11365/1120719 |s2cid=203078270 |hdl-access=free }}
• Description of bird remains from the Qesem cave (Israel) dated to between 420 and 200 ka, and a study on their implications for the knowledge of interactions of birds and humans occupying the site, is published by Blasco et al. (2019).{{Cite journal|author1=Ruth Blasco |author2=Jordi Rosell |author3=Antonio Sánchez-Marco |author4=Avi Gopher |author5=Ran Barkai |year=2019 |title=Feathers and food: Human-bird interactions at Middle Pleistocene Qesem Cave, Israel |journal=Journal of Human Evolution |volume=136 |pages=Article 102653 |doi=10.1016/j.jhevol.2019.102653 |pmid=31542561 |bibcode=2019JHumE.13602653B |s2cid=202731186 }}
• A study on the phylogenetic relationships of the dodo and the great auk, as indicated by data from proteins extracted from bone material, is published by Horn et al. (2019).{{Cite journal|author1=Ivo R. Horn |author2=Yvo Kenens |author3=N. Magnus Palmblad |author4=Suzanne J. van der Plas-Duivesteijn |author5=Bram W. Langeveld |author6=Hanneke J. M. Meijer |author7=Hans Dalebout |author8=Rob J. Marissen |author9=Anja Fischer |author10=F. B. Vincent Florens |author11=Jonas Niemann |author12=Kenneth F. Rijsdijk |author13=Anne S. Schulp |author14=Jeroen F. J. Laros |author15=Barbara Gravendeel |year=2019 |title=Palaeoproteomics of bird bones for taxonomic classification |journal=Zoological Journal of the Linnean Society |volume=186 |issue=3 |pages=650–665 |doi=10.1093/zoolinnean/zlz012 |doi-access=free |hdl=1956/21615 |hdl-access=free }}
• A study on bone surface modifications of Pleistocene bird fossils from Mata Menge site (Flores, Indonesia) is published by Meijer et al. (2019), who report no unambiguous evidence for exploitation of birds from Mata Menge by early hominins.{{Cite journal|author1=Hanneke J.M. Meijer |author2=Francesco d'Errico |author3=Alain Queffelec |author4=Iwan Kurniawan |author5=Erick Setiabudi |author6=Indra Sutisna|author7-link=Adam Brumm |author7=Adam Brumm |author8=Gerrit D. van den Bergh |year=2019 |title=Characterization of bone surface modifications on an Early to Middle Pleistocene bird assemblage from Mata Menge (Flores, Indonesia) using multifocus and confocal microscopy |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |volume=529 |pages=1–11 |doi=10.1016/j.palaeo.2019.05.025 |bibcode=2019PPP...529....1M |doi-access=free |hdl=10072/387049 |hdl-access=free }}
• A study on the impact of human colonization of New Zealand on the diversity dynamics of New Zealand bird fauna is published by Valente, Etienne & Garcia-R (2019).{{Cite journal|author1=Luis Valente |author2=Rampal S. Etienne |author3=Juan C. Garcia-R. |year=2019 |title=Deep macroevolutionary impact of humans on New Zealand's unique avifauna |journal=Current Biology |volume=29 |issue=15 |pages=2563–2569.e4 |doi=10.1016/j.cub.2019.06.058 |pmid=31386837 |bibcode=2019CBio...29E2563V |s2cid=199469555 |url=https://pure.rug.nl/ws/files/93506170/1_s2.0_S0960982219307857_main_1_.pdf }}

• A study on the evolution of vertebral pneumaticity in pterosaurs is published by Buchmann & Rodrigues (2019).{{cite journal |author1=Richard Buchmann |author2=Taissa Rodrigues |year=2019 |title=The evolution of pneumatic foramina in pterosaur vertebrae |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |pages=e20180782 |doi=10.1590/0001-3765201920180782 |pmid=31090800 |doi-access=free }}
• A study on the development of pterosaur embryos is published by Unwin & Deeming (2019).{{Cite journal|author1=David Michael Unwin |author2=D. Charles Deeming |year=2019 |title=Prenatal development in pterosaurs and its implications for their postnatal locomotory ability |journal=Proceedings of the Royal Society B: Biological Sciences |volume=286 |issue=1904 |pages=Article ID 20190409 |doi=10.1098/rspb.2019.0409 |pmid=31185866 |pmc=6571455 }}
• A study on three pterosaur coprolites from the Upper Jurassic of Poland, probably produced by ctenochasmatids, and on the probable diet of their producers is published by Qvarnström et al. (2019).{{Cite journal|author1=Martin Qvarnström |author2=Erik Elgh |author3=Krzysztof Owocki |author4=Per E. Ahlberg |author5=Grzegorz Niedźwiedzki |year=2019 |title=Filter feeding in Late Jurassic pterosaurs supported by coprolite contents |journal=PeerJ |volume=7 |pages=e7375 |doi=10.7717/peerj.7375 |pmid=31523493 |pmc=6714960 |doi-access=free }}
• Pycnofibers showing diagnostic features of feathers are reported in two specimens of anurognathid pterosaurs (probably belonging either to the genus Jeholopterus or Dendrorhynchoides){{Cite journal|author1=Zixiao Yang |author2=Baoyu Jiang |author3=Maria E. McNamara |author4=Stuart L. Kearns |author5=Michael Pittman |author6=Thomas G. Kaye |author7=Patrick J. Orr |author8=Xing Xu |author9=Michael J. Benton |year=2019 |title=Supplementary information for: Pterosaur integumentary structures with complex feather-like branching |journal=Nature Ecology & Evolution |volume=3 |issue=1 |pages=24–30 |url=https://static-content.springer.com/esm/art%3A10.1038%2Fs41559-018-0728-7/MediaObjects/41559_2018_728_MOESM1_ESM.pdf |doi=10.1038/s41559-018-0728-7 |pmid=30568282 |hdl=1983/1f7893a1-924d-4cb3-a4bf-c4b1592356e9 |s2cid=56480710 }} from the Jurassic of China by Yang et al. (2019);{{Cite journal |author1=Zixiao Yang |author2=Baoyu Jiang |author3=Maria E. McNamara |author4=Stuart L. Kearns |author5=Michael Pittman |author6=Thomas G. Kaye |author7=Patrick J. Orr |author8=Xing Xu |author9=Michael J. Benton |year=2019 |title=Pterosaur integumentary structures with complex feather-like branching |journal=Nature Ecology & Evolution |volume=3 |issue=1 |pages=24–30 |doi=10.1038/s41559-018-0728-7 |pmid=30568282 |url=https://palaeopublications.blogs.bristol.ac.uk/files/2020/06/2019pterosaur.pdf |hdl=1983/1f7893a1-924d-4cb3-a4bf-c4b1592356e9 |s2cid=56480710 |access-date=2020-09-28 }}{{Dead link|date=August 2021 |bot=InternetArchiveBot |fix-attempted=yes }} the study is subsequently criticized by Unwin & Martill (2020).{{Cite journal |author1=David M. Unwin |author2=David M. Martill |year=2020 |title=No protofeathers on pterosaurs |journal=Nature Ecology & Evolution |volume=4 |issue=12 |pages=1590–1591 |doi=10.1038/s41559-020-01308-9 |pmid=32989266 |bibcode=2020NatEE...4.1590U |s2cid=222168569 }}{{Cite journal |author1=Zixiao Yang |author2=Baoyu Jiang |author3=Maria E. McNamara |author4=Stuart L. Kearns |author5=Michael Pittman |author6=Thomas G. Kaye |author7=Patrick J. Orr |author8=Xing Xu |author9=Michael J. Benton |year=2020 |title=Reply to: No protofeathers on pterosaurs |journal=Nature Ecology & Evolution |volume=4 |issue=12 |pages=1592–1593 |url=https://palaeopublications.blogs.bristol.ac.uk/files/2020/12/2020Pterofeathers.pdf |doi=10.1038/s41559-020-01309-8 |pmid=32989267 |bibcode=2020NatEE...4.1592Y |hdl=10468/11874 |s2cid=222163211 }}{{Dead link|date=August 2021 |bot=InternetArchiveBot |fix-attempted=yes }}
• Redescription of the holotype specimen of Mythunga camara is published by Pentland & Poropat (2019).{{Cite journal|author1=Adele H. Pentland |author2=Stephen F. Poropat |year=2019 |title=Reappraisal of Mythunga camara Molnar & Thulborn, 2007 (Pterosauria, Pterodactyloidea, Anhangueria) from the upper Albian Toolebuc Formation of Queensland, Australia |journal=Cretaceous Research |volume=93 |pages=151–169 |doi=10.1016/j.cretres.2018.09.011 |bibcode=2019CrRes..93..151P |s2cid=133856481 }}
• Partial left metacarpal of a large ornithocheirid pterosaur is described from the Lower Cretaceous (Barremian) Wessex Formation (United Kingdom) by Martill & Coram (2019).{{Cite journal|author1=David M. Martill |author2=Robert A. Coram |year=2019 |title=Additional evidence for very large wing-span pterosaurs in the Wessex Formation (Early Cretaceous, Barremian) of southern England |journal=Proceedings of the Geologists' Association |volume=131 |issue=3–4 |pages=293–300 |doi=10.1016/j.pgeola.2019.05.002 |s2cid=182649986 |url=https://researchportal.port.ac.uk/portal/en/publications/additional-evidence-for-very-large-wingspan-pterosaurs-in-the-wessex-formation-early-cretaceous-barremian-of-southern-england(aaf33feb-76ee-4e63-9783-73bb42044c01).html }}
• New specimen of Sinopterus atavismus (a nearly complete skeleton) is described from the Lower Cretaceous (Aptian) Jiufotang Formation (China) by Zhang et al. (2019).{{cite journal |author1=Xinjun Zhang |author2=Shunxing Jiang |author3=Xin Cheng |author4=Xiaolin Wang |year=2019 |title=New material of Sinopterus (Pterosauria, Tapejaridae) from the Early Cretaceous Jehol Biota of China |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |pages=e20180756 |doi=10.1590/0001-376520192018756 |pmid=31271567 |doi-access=free }}
• A study on intervertebral foramina in Vectidraco, Anhanguera and Coloborhynchus, and on their implications for inferring palaeoecology and locomotion of these pterosaurs, is published by Martin-Silverstone, Sykes & Naish (2019).{{Cite journal|author1=Elizabeth Martin-Silverstone |author2=Daniel Sykes |author3=Darren Naish |year=2019 |title=Does postcranial palaeoneurology provide insight into pterosaur behaviour and lifestyle? New data from the azhdarchoid Vectidraco and the ornithocheirids Coloborhynchus and Anhanguera |journal=Palaeontology |volume=62 |issue= 2|pages= 197–210|doi=10.1111/pala.12390 |bibcode=2019Palgy..62..197M |hdl=1983/d4d42086-9b8e-463d-a104-9e602ffca96c |s2cid=133796336 |url=https://research-information.bris.ac.uk/ws/files/197122413/Martin_Silverstone_et_al._Resubmission_FINAL.pdf }}
• The first pterosaur postcranial bone (a left ulna) from the Albian Lohan Cura Formation (Argentina) is described by Bellardini & Codorniú (2019).{{Cite journal|author1=Flavio Bellardini |author2=Laura Codorniú |year=2019 |title=First pterosaur post-cranial remains from the Lower Cretaceous Lohan Cura Formation (Albian) of Patagonia, Argentina |journal=Ameghiniana |volume=56 |issue=2 |pages=116–134 |doi=10.5710/AMGH.13.03.2019.3225 |s2cid=131780806 }}
• A study on the melanin content of the soft tissue headcrest of a specimen of Tupandactylus imperator is published by Pinheiro et al. (2019).{{Cite journal|author1=Felipe L. Pinheiro |author2=Gustavo Prado |author3=Shosuke Ito |author4=John D. Simon |author5=Kazumasa Wakamatsu |author6=Luiz E. Anelli |author7=José A. F. Andrade |author8=Keely Glass |year=2019 |title=Chemical characterization of pterosaur melanin challenges color inferences in extinct animals |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 15947 |doi=10.1038/s41598-019-52318-y |pmid=31685890 |pmc=6828676 |bibcode=2019NatSR...915947P }}
• Kellner et al. (2019) describe fossils of pterodactyloid pterosaurs from the Upper Cretaceous Santa Marta Formation and Snow Hill Island Formation (Antarctica).{{cite journal |author1=Alexander W.A. Kellner |author2=Taissa Rodrigues |author3=Fabiana R. Costa |author4=Luiz C. Weinschütz |author5=Rodrigo G. Figueiredo |author6=Geovane A. de Souza |author7=Arthur S. Brum |author8=Lúcia H.S. Eleutério |author9=Carsten W. Mueller |author10=Juliana M. Sayão |year=2019 |title=Pterodactyloid pterosaur bones from Cretaceous deposits of the Antarctic Peninsula |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |pages=e20191300 |doi=10.1590/0001-3765201920191300 |pmid=31800676 |doi-access=free }}

• Fossils of an immature lagerpetid, representing a new morphotype different from other known lagerpetids, and co-occurring with dinosaurs and silesaurids, are described from the Candelária Sequence of the Upper Triassic Santa Maria Formation (Brazil) by Garcia et al. (2019).{{Cite journal|author1=Maurício S. Garcia |author2=Rodrigo T. Müller |author3=Átila A.S. Da-Rosa |author4=Sérgio Dias-da-Silva |year=2019 |title=The oldest known co-occurrence of dinosaurs and their closest relatives: A new lagerpetid from a Carnian (Upper Triassic) bed of Brazil with implications for dinosauromorph biostratigraphy, early diversification and biogeography |journal=Journal of South American Earth Sciences |volume=91 |pages=302–319 |doi=10.1016/j.jsames.2019.02.005 |bibcode=2019JSAES..91..302G |s2cid=133873065 }}
• A study on the histology and gross morphology of a growth series of femora of Dromomeron romeri is published by Griffin et al. (2019).{{Cite journal|author1=Christopher T. Griffin |author2=Lauren S. Bano |author3=Alan H. Turner |author4=Nathan D. Smith |author5=Randall B. Irmis |author6=Sterling J. Nesbitt |year=2019 |title=Integrating gross morphology and bone histology to assess skeletal maturity in early dinosauromorphs: new insights from Dromomeron (Archosauria: Dinosauromorpha) |journal=PeerJ |volume=7 |pages=e6331 |doi=10.7717/peerj.6331 |pmid=30775169 |pmc=6375289 |doi-access=free }}
• A study reevaluating the taxonomic validity of Lagosuchus talampayensis is published by Agnolin & Ezcurra (2019).{{Cite journal|author1=Federico L. Agnolin |author2=Martín D. Ezcurra |year=2019 |title=The validity of Lagosuchus talampayensis Romer, 1971 (Archosauria, Dinosauriformes), from the Late Triassic of Argentina |journal=Breviora |volume=565 |pages=1–21 |doi=10.3099/0006-9698-565.1.1 |s2cid=201949710 |url=https://mczbase.mcz.harvard.edu/specimen_images/publications/Breviora_565.pdf }}
• A study on the microstructure of the long bones (femur and tibiae) of Lewisuchus admixtus is published by Garcia Marsà, Agnolín & Novas (2019).{{Cite journal|author1=Jordi Alexis Garcia Marsà |author2=Federico L. Agnolín |author3=Fernando Novas |year=2019 |title=Bone microstructure of Lewisuchus admixtus Romer, 1972 (Archosauria, Dinosauriformes) |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=2 |pages=157–162 |doi=10.1080/08912963.2017.1347646 |bibcode=2019HBio...31..157M |s2cid=90318682 }}
• New specimen of Lewisuchus admixtus is described from the Chañares Formation (Argentina) by Ezcurra et al. (2019).{{Cite journal|author1=Martín D. Ezcurra |author2=Sterling J. Nesbitt |author3=Lucas E. Fiorelli |author4=Julia B. Desojo |year=2019 |title=New specimen sheds light on the anatomy and taxonomy of the early Late Triassic dinosauriforms from the Chañares Formation, NW Argentina |journal=The Anatomical Record |volume=303 |issue=5 |pages=1393–1438 |doi=10.1002/ar.24243 |pmid=31444989 |hdl=11336/129047 |s2cid=201644543 |doi-access=free |hdl-access=free }}
• A study on the anatomy of the skeleton of Asilisaurus kongwe is published online by Nesbitt, Langer & Ezcurra (2019).{{cite journal |author1=Sterling J. Nesbitt |author2=Max C. Langer |author3=Martin D. Ezcurra |year=2019 |title=The anatomy of Asilisaurus kongwe, a dinosauriform from the Lifua Member of the Manda Beds (~Middle Triassic) of Africa |journal=The Anatomical Record |volume=303 |issue=4 |pages=813–873 |doi=10.1002/ar.24287 |pmid=31797580 |s2cid=208621389 |doi-access=free |hdl=11336/135536 |hdl-access=free }}
• A study on the anatomy of the braincase of Silesaurus opolensis is published by Piechowski, Niedźwiedzki & Tałanda (2019).{{cite journal |author1=Rafał Piechowski |author2=Grzegorz Niedźwiedzki |author3=Mateusz Tałanda |year=2019 |title=Unexpected bird-like features and high intraspecific variation in the braincase of the Triassic relative of dinosaurs |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=8 |pages=1065–1081 |doi=10.1080/08912963.2017.1418339 |bibcode=2019HBio...31.1065P |s2cid=89917573 }}
• Coprolites containing beetle remains, most likely produced by Silesaurus opolensis, are described from the Upper Triassic Krasiejów locality (Poland) by Qvarnström et al. (2019).{{cite journal |author1=Martin Qvarnström |author2=Joel Vikberg Wernström |author3=Rafał Piechowski |author4=Mateusz Tałanda |author5=Per E. Ahlberg |author6=Grzegorz Niedźwiedzki |year=2019 |title=Beetle-bearing coprolites possibly reveal the diet of a Late Triassic dinosauriform |journal=Royal Society Open Science |volume=6 |issue=3 |pages=Article ID 181042 |doi=10.1098/rsos.181042 |pmid=31031991 |pmc=6458417 |bibcode=2019RSOS....681042Q }}
• A study on bone histology of Sacisaurus agudoensis is published by Veiga et al. (2019).{{cite journal |author1=Fábio Hiratsuka Veiga |author2=Jennifer Botha-Brink |author3=Ana Maria Ribeiro |author4=Jorge Ferigolo |author5=Marina Bento Soares |year=2019 |title=Osteohistology of the silesaurid Sacisaurus agudoensis from southern Brazil (Late Triassic) and implications for growth in early dinosaurs |journal=Anais da Academia Brasileira de Ciências |volume=91 |issue=Suppl. 2 |pages=e20180643 |doi=10.1590/0001-3765201920180643 |pmid=31241650 |doi-access=free }}
• A study on the phylogenetic relationships of Pisanosaurus mertii is published by Baron (2019), who interprets this taxon as a likely silesaurid.{{Cite journal|last=Baron|first=Matthew G.|year=2019 |title=Pisanosaurus mertii and the Triassic ornithischian crisis: could phylogeny offer a solution? |journal=Historical Biology: An International Journal of Paleobiology |volume=31 |issue=8 |pages=967–981 |doi=10.1080/08912963.2017.1410705 |bibcode=2019HBio...31..967B |s2cid=89924902|issn=0891-2963}}

• A study on patterns of evolutionary integration among regions of the archosaur skull, based on data from extant and fossil taxa, is published by Felice et al. (2019).{{cite journal |author1=R. N. Felice |author2=A. Watanabe |author3=A. R. Cuff |author4=E. Noirault |author5=D. Pol |author6=L. M. Witmer |author7=M. A. Norell |author8=P. M. O'Connor |author9=A. Goswami |year=2019 |title=Evolutionary integration and modularity in the archosaur cranium |journal=Integrative and Comparative Biology |volume=59 |issue=2 |pages=371–382 |doi=10.1093/icb/icz052 |pmid=31120528 |url=https://researchonline.rvc.ac.uk/id/eprint/12129/1/12129.pdf }}
• A review of the biogeographic history of crocodyliforms, sauropod dinosaurs, nonavian theropod dinosaurs and mammals from the Mesozoic of Gondwana is published by Krause et al. (2019).{{cite journal |author1=David W. Krause |author2=Joseph J.W. Sertich |author3=Patrick M. O'Connor |author4=Kristina Curry Rogers |author5=Raymond R. Rogers |year=2019 |title=The Mesozoic biogeographic history of Gondwanan terrestrial vertebrates: insights from Madagascar's fossil record |journal=Annual Review of Earth and Planetary Sciences |volume=47 |pages=519–553 |doi=10.1146/annurev-earth-053018-060051 |bibcode=2019AREPS..47..519K |s2cid=135425174 |doi-access=free }}
• A study on the biogeography of Cretaceous terrestrial tetrapods, including terrestrial crocodyliforms, non-avian dinosaurs, birds and pterosaurs, is published by Kubo (2019).{{Cite journal|author=Tai Kubo |year=2019 |title=Biogeographical network analysis of Cretaceous terrestrial tetrapods: a phylogeny-based approach |journal=Systematic Biology |volume=68 |issue=6 |pages=1034–1051 |doi=10.1093/sysbio/syz024 |pmid=31135923 }}
• A study on size and shape differences between brains and endocasts of extant American alligator and domestic chicken, and on its implications for inferring whether endocasts are a reliable proxy for brain morphology in archosaurs in general, is published by Watanabe et al. (2019).{{cite journal |author1=Akinobu Watanabe |author2=Paul M. Gignac |author3=Amy M. Balanoff |author4=Todd L. Green |author5=Nathan J. Kley |author6=Mark A. Norell |year=2019 |title=Are endocasts good proxies for brain size and shape in archosaurs throughout ontogeny? |journal=Journal of Anatomy |volume=234 |issue=3 |pages=291–305 |doi=10.1111/joa.12918 |pmid=30506962 |pmc=6365484 }}
• A study comparing the mechanical properties of teeth of Suchomimus tenerensis and Sarcosuchus imperator is published by Kundanati et al. (2019).{{cite journal |author1=Lakshminath Kundanati |author2=Mirco D'Incau |author3=Massimo Bernardi |author4=Paolo Scardi |author5=Nicola M. Pugno |year=2019 |title=A comparative study of the mechanical properties of a dinosaur and crocodile fossil teeth |journal=Journal of the Mechanical Behavior of Biomedical Materials |volume=97 |pages=365–374 |doi=10.1016/j.jmbbm.2019.05.025 |pmid=31158580 |hdl=11572/238271 |s2cid=174806086 |hdl-access=free }}
• A study on the distribution of medullary bone in the skeletons of living birds, aiming to refine the set of criteria used to evaluate purported records of medullary bone tissue in fossil avemetatarsalians, is published by Canoville, Schweitzer & Zanno (2019).{{cite journal |author1=Aurore Canoville |author2=Mary H. Schweitzer |author3=Lindsay E. Zanno |year=2019 |title=Systemic distribution of medullary bone in the avian skeleton: ground truthing criteria for the identification of reproductive tissues in extinct Avemetatarsalia |journal=BMC Evolutionary Biology |volume=19 |issue=1 |pages=71 |doi=10.1186/s12862-019-1402-7 |pmid=30845911 |pmc=6407237 |doi-access=free |bibcode=2019BMCEE..19...71C }}
• A study comparing the anatomy of hindlimbs of cursorial birds, non-avian theropod dinosaurs and other cursorial animals, aiming to determine whether cursorial birds are good kinematic model for reconstructions of theropod dinosaur locomotion, is published by Grossi et al. (2019).{{cite journal |author1=Bruno Grossi |author2=Patricio Loncomilla |author3=Mauricio Canals |author4=Javier Ruiz-Del-Solar |year=2019 |title=Are cursorial birds good kinematic models of non-avian theropods? |journal=International Journal of Morphology |volume=37 |issue=2 |pages=620–625 |doi=10.4067/S0717-95022019000200620 |doi-access=free }}
• A study on the microstructure of eggshells in birds and non-avian maniraptoran dinosaurs is published by Choi, Han & Lee (2019).{{Cite journal|author1=Seung Choi |author2=Seokyoung Han |author3=Yuong-Nam Lee |year=2019 |title=Electron backscatter diffraction (EBSD) analysis of maniraptoran eggshells with important implications for microstructural and taphonomic interpretations |journal=Palaeontology |volume=62 |issue=5 |pages=777–803 |doi=10.1111/pala.12427 |bibcode=2019Palgy..62..777C |s2cid=182770470 }}
• Hu et al. (2019) reconstruct the vomer of Sapeornis and Sinovenator, and evaluate their implications for the knowledge of the evolution of the skull of paravians.{{Cite journal|author1=Han Hu |author2=Gabriele Sansalone |author3=Stephen Wroe |author4=Paul G. McDonald |author5=Jingmai K. O'Connor |author6=Zhiheng Li |author7=Xing Xu |author8=Zhonghe Zhou |year=2019 |title=Evolution of the vomer and its implications for cranial kinesis in Paraves |journal=Proceedings of the National Academy of Sciences of the United States of America |volume=116 |issue=39 |pages=19571–19578 |doi=10.1073/pnas.1907754116 |pmid=31501339 |pmc=6765239 |bibcode=2019PNAS..11619571H |doi-access=free }}
• A study on the anatomy of skull fenestrae in sauropsids, and on its implications for reconstructions of dinosaur soft tissues, is published online by Holliday et al. (2019).{{cite journal |author1=Casey M. Holliday |author2=Wm. Ruger Porter |author3=Kent A. Vliet |author4=Lawrence M. Witmer |year=2019 |title=The frontoparietal fossa and dorsotemporal fenestra of archosaurs and their significance for interpretations of vascular and muscular anatomy in dinosaurs |journal=The Anatomical Record |volume=303 |issue=4 |pages=1060–1074 |doi=10.1002/ar.24218 |pmid=31260177 |s2cid=195756776 |doi-access=free }}
• A study aiming to determine the likely karyotype of the dinosaur and the early diapsid ancestor of birds is published by Griffin, Larkin & O'Connor (2019).{{cite book |author1=Darren K. Griffin |author2=Denis M. Larkin |author3=Rebecca E. O'Connor |year=2019 |chapter=Jurassic Park: What did the genomes of dinosaurs look like? |editor=Robert H. S. Kraus |title=Avian genomics in ecology and evolution. From the lab into the wild |publisher=Springer |pages=331–348 |isbn=978-3-030-16476-8 |doi=10.1007/978-3-030-16477-5_11 |s2cid=198263477 }}
• A study on the evolution of bipedality in archosaurs is published by Grinham, VanBuren & Norman (2019).{{cite journal |author1=Luke R. Grinham |author2=Collin S. VanBuren |author3=David B. Norman |year=2019 |title=Testing for a facultative locomotor mode in the acquisition of archosaur bipedality |journal=Royal Society Open Science |volume=6 |issue=7 |pages=Article ID 190569 |doi=10.1098/rsos.190569 |pmid=31417751 |pmc=6689609 |bibcode=2019RSOS....690569G }}
• A study on the evolution of the brain of bird-line archosaurs is published by Beyrand et al. (2019).{{cite journal |author1=Vincent Beyrand |author2=Dennis F. A. E. Voeten |author3=Stanislav Bureš |author4=Vincent Fernandez |author5=Jiří Janáček |author6=Daniel Jirák |author7=Oliver Rauhut |author8=Paul Tafforeau |year=2019 |title=Multiphase progenetic development shaped the brain of flying archosaurs |journal=Scientific Reports |volume=9 |issue=1 |pages=Article number 10807 |doi=10.1038/s41598-019-46959-2 |pmid=31346192 |pmc=6658547 |bibcode=2019NatSR...910807B }}
• A review of the progress in the field of archosaur paleohistology, focusing in particular on the study of the dinosaurs, is published by Bailleul, O'Connor & Schweitzer (2019).{{cite journal |author1=Alida M. Bailleul |author2=Jingmai O'Connor |author3=Mary H. Schweitzer |year=2019 |title=Dinosaur paleohistology: review, trends and new avenues of investigation |journal=PeerJ |volume=7 |pages=e7764 |doi=10.7717/peerj.7764 |pmid=31579624 |pmc=6768056 |doi-access=free }}
• A study on the phylogenetic distribution of the hyposphene-hypantrum articulation in the vertebrae of archosaurs is published by Stefanic & Nesbitt (2019).{{cite journal |author1=Candice M. Stefanic |author2=Sterling J. Nesbitt |year=2019 |title=The evolution and role of the hyposphene-hypantrum articulation in Archosauria: phylogeny, size and/or mechanics? |journal=Royal Society Open Science |volume=6 |issue=10 |pages=Article ID 190258 |doi=10.1098/rsos.190258 |pmid=31824685 |pmc=6837189 |bibcode=2019RSOS....690258S }}
• A study comparing growth patterns of the American alligator, chicken and Tenontosaurus tilletti is published by Brunner et al. (2019).{{Cite journal|author1=Norbert Brunner |author2=Manfred Kühleitner |author3=Werner Georg Nowak |author4=Katharina Renner-Martin |author5=Klaus Scheicher |year=2019 |title=Comparing growth patterns of three species: Similarities and differences |journal=PLOS ONE |volume=14 |issue=10 |pages=e0224168 |doi=10.1371/journal.pone.0224168 |pmid=31644562 |pmc=6808503 |bibcode=2019PLoSO..1424168B |doi-access=free }}
• A study comparing the position, size and number of pneumatic foramina in the vertebrae of pterosaurs and birds is published by Buchmann, Avilla & Rodrigues (2019).{{Cite journal|author1=Richard Buchmann |author2=Leonardo dos Santos Avilla |author3=Taissa Rodrigues |year=2019 |title=Comparative analysis of the vertebral pneumatization in pterosaurs (Reptilia: Pterosauria) and extant birds (Avialae: Neornithes) |journal=PLOS ONE |volume=14 |issue=10 |pages=e0224165 |doi=10.1371/journal.pone.0224165 |pmid=31652295 |pmc=6814219 |bibcode=2019PLoSO..1424165B |doi-access=free }}
• A study on non-avian dinosaur and bird tracks (representing some of the oldest known bird tracks) preserved in slabs used as building stones at the Chengde Mountain Resort, originating from the Tuchengzi Formation (China) and dating to the Jurassic-Cretaceous boundary, is published online by Xing et al. (2019).{{Cite journal|author1=Lida Xing |author2=Martin G. Lockley |author3=Tianming Du |author4=Lijun Zhang |author5=Hendrik Klein |author6=Anthony Romilio |author7=W. Scott Persons IV |author8=Kuan Wang |author9=Zhenyu Li |author10=Xiaoqiao Wan |year=2020 |title=Dinosaur tracks from the Jurassic-Cretaceous boundary Tuchengzi Formation (Hebei Province, China) used as building stones in the Chengde imperial summer resort: age, ichnology, and history |journal=Cretaceous Research |volume=107 |pages=Article 104310 |doi=10.1016/j.cretres.2019.104310 |bibcode=2020CrRes.10704310X |s2cid=210266977 }}
• Description of non-avian dinosaur and bird tracks from the Upper Cretaceous Chignik Formation (southwestern Alaska), evaluating their implications for the knowledge of habitat preferences of northern high-latitude dinosaurs, is published by Fiorillo et al. (2019).{{Cite journal|author1=Anthony R. Fiorillo |author2=Yoshitsugu Kobayashi |author3=Paul J. McCarthy |author4=Tomonori Tanaka |author5=Ronald S. Tykoski |author6=Yuong-Nam Lee |author7=Ryuji Takasaki |author8=Junki Yoshida |year=2019 |title=Dinosaur ichnology and sedimentology of the Chignik Formation (Upper Cretaceous), Aniakchak National Monument, southwestern Alaska; Further insights on habitat preferences of high-latitude hadrosaurs |journal=PLOS ONE |volume=14 |issue=10 |pages=e0223471 |doi=10.1371/journal.pone.0223471 |pmid=31665132 |pmc=6821036 |bibcode=2019PLoSO..1423471F |doi-access=free }}
• An assemblage of non-avian dinosaur and bird feathers is described from the Lower Cretaceous Koonwarra Fossil Bed (Australia) by Kundrát et al. (2019).{{Cite journal|author1=Martin Kundrát |author2=Thomas H. Rich |author3=Johan Lindgren |author4=Peter Sjövall |author5=Patricia Vickers-Rich |author6=Luis M. Chiappe |author7=Benjamin P. Kear |year=2020 |title=A polar dinosaur feather assemblage from Australia |journal=Gondwana Research |volume=80 |pages=1–11 |doi=10.1016/j.gr.2019.10.004 |bibcode=2020GondR..80....1K |s2cid=210276057 }}
• A study on barb angles in birds and non-avian dinosaurs, evaluating their implications for the knowledge of feather shape evolution and the utility of barb angles for determination of flight abilities of fossil taxa, is published by Wang, Tang & Clarke (2019).{{Cite journal|author1=Xia Wang |author2=Ho Kwan Tang |author3=Julia A. Clarke |year=2019 |title=Flight, symmetry and barb angle evolution in the feathers of birds and other dinosaurs |journal=Biology Letters |volume=15 |issue=12 |pages=Article ID 20190622 |doi=10.1098/rsbl.2019.0622 |pmid=31795849 |pmc=6936028 }}

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Category:2019 in paleontology

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