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{| class="wikitable sortable" style="width: 100%; font-size: 95%" |
| Genus
!Authors
!Year
!Status
!Age
!Location
! width="50%"| Notes |
|---|
Abyssosaurus[{{cite journal |author=A. Yu. Berezin |year=2011 |title=A new plesiosaur of the family Aristonectidae from the early cretaceous of the center of the Russian platform |journal=Paleontological Journal |volume=45 |issue=6 |pages=648–660 |doi=10.1134/S0031030111060037 |bibcode=2011PalJ...45..648B |s2cid=129045087 }}]
|
Berezin
|
2011
|
Valid
|
eK
|
Europe
| |
Acostasaurus[{{Cite journal|author1=Marcela Gómez-Pérez |author2=Leslie F. Noè |year=2017 |title=Cranial anatomy of a new pliosaurid Acostasaurus pavachoquensis from the Lower Cretaceous of Colombia, South America |journal=Palaeontographica Abteilung A |volume=310 |issue=1–2 |pages=5–42 |doi=10.1127/pala/2017/0068 |bibcode=2017PalAA.310....5G }}]
|Gómez-Pérez
Noè
|
2017
|
Valid
|
eK
|
South America
| |
Albertonectes[{{cite journal |author=Tai Kubo |author2=Mark T. Mitchell |author3=Donald M. Henderson |name-list-style=amp |year=2012 |title=Albertonectes vanderveldei, a new elasmosaur (Reptilia, Sauropterygia) from the Upper Cretaceous of Alberta |journal=Journal of Vertebrate Paleontology |volume=32 |issue=3 |pages=557–572 |doi=10.1080/02724634.2012.658124|bibcode=2012JVPal..32..557K |s2cid=129500470 }}]
|Kubo
Mitchell
Henderson
|
2012
|
Valid
|
lK
|
North America
| |
| Alexandronectes
|
Otero et al.
|
2016
|
Valid
|
lK
|
Australasia
| |
| Alexeyisaurus
|
Sennikov
Arkhangelsky
|
2010
|
Valid
|
lT
|
Europe
| |
| "Alzadasaurus"
|
Welles
|
1943
|
|
|
| |
Anguanax[{{cite journal |author1=Andrea Cau |author2=Federico Fanti |name-list-style=amp|year=2015 |title=High evolutionary rates and the origin of the Rosso Ammonitico Veronese Formation (Middle-Upper Jurassic of Italy) reptiles |journal=Historical Biology: An International Journal of Paleobiology |volume=28 |issue= 7|pages= 952–962|doi=10.1080/08912963.2015.1073726 |s2cid=86528030 }}]
|
Cau
Fanti
|
2015
|
Valid
|
lJ
|
Europe
| |
Anningasaura[{{cite journal |author=Peggy Vincent |author2=Roger B. J. Benson |name-list-style=amp |year=2012 |title=Anningasaura, a basal plesiosaurian (Reptilia, Plesiosauria) from the Lower Jurassic of Lyme Regis, United Kingdom |journal=Journal of Vertebrate Paleontology |volume=32 |issue=5 |pages=1049–1063 |doi=10.1080/02724634.2012.686467|bibcode=2012JVPal..32.1049V |s2cid=86547069 }}]
|
Vincent
Benson
|
2012
|
Valid
|
eJ
|
Europe
| |
| Apatomerus
|
Williston
|
1903
|
Valid
|
eK
|
| |
| Aphrosaurus
|
Welles
|
1943
|
Valid
|
lK
|
| |
| "Apractocleidus"
|
Smellie
|
1916
|
Jr. synonym
|
|
| Junior synonym of Cryptoclidus. |
| Aptychodon
|
Reuss
|
1855
|
Valid
|
lK
|
| |
| Archaeonectrus
|
Owen
|
1865
|
Valid
|
eJ
|
Europe
| |
| Arminisaurus
|
Sachs
Kear
|
2018
|
Valid
|
eJ
|
Europe
| |
| Aristonectes
|
Cabrera
|
1941
|
Valid
|
lK
|
South America, Antarctica
| |
| Attenborosaurus
|
Bakker
|
1993
|
Valid
|
eJ
|
Europe
| |
| Atychodracon
|
Smith
|
2015
|
Valid
|
|
Europe
| |
Avalonnectes[{{cite journal |author=Roger B. J. Benson |author2=Mark Evans |author3=Patrick S. Druckenmiller |name-list-style=amp |year=2012 |title=High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic–Jurassic Boundary |journal=PLOS ONE |volume=7 |issue=3 |pages=e31838 |doi=10.1371/journal.pone.0031838 |pmid=22438869 |pmc=3306369|bibcode=2012PLoSO...731838B |doi-access=free }}]
|Benson
Evans
Druckenmiller
|
2012
|
Valid
|
eJ
|
Europe
| |
| Bathyspondylus
|
Delair
|
1982
|
Valid
|
lJ
|
| |
| Bishanopliosaurus
|
Dong
|
1980
|
Valid
|
eJ
|
| |
| Bobosaurus
|
Dalla Vecchia
|
2006
|
Valid
|
lT
|
| |
| Borealonectes
|
Sato
Wu
|
1980
|
Valid
|
mJ
|
| |
| Brachauchenius
|
Williston
|
1903
|
Valid
|
eK to lK
|
| |
| Brancasaurus
|
Wegner
|
1914
|
Valid
|
eK
|
| |
| Brimosaurus
|
Leidy
|
1855
|
Valid
|
lK
|
| |
| Callawayasaurus
|
Carpenter
|
1999
|
Valid
|
eK
|
| |
Cardiocorax[{{cite journal |author=R. Araújo |author2=M.J. Polcyn |author3=A.S. Schulp |author4=O. Mateus |author5=L.L. Jacobs|author6=A. Olímpio Gonçalves |author7=M.-L. Morais |name-list-style=amp |year=2015 |title=A new elasmosaurid from the early Maastrichtian of Angola and the implications of girdle morphology on swimming style in plesiosaurs |journal=Netherlands Journal of Geosciences |volume=94 |issue=1 |pages=109–120 |doi=10.1017/njg.2014.44 |s2cid=86616531 |doi-access=free |bibcode=2015NJGeo..94..109A }}]
|
Araújo
et al.
|
2015
|
Valid
|
lK
|
Africa
| |
| Ceraunosaurus
|
Thurmond
|
1968
|
Jr. synonym
|
|
| Junior synonym of Trinacromerum. |
Chubutinectes[{{Cite journal |last1=O’Gorman |first1=José P. |last2=Carignano |first2=Ana Paula |last3=Calvo-Marcilese |first3=Lydia |last4=Pérez Panera |first4=Juan Pablo |date=2023-08-10 |title=A new elasmosaurid (Sauropterygia, Plesiosauria) from the upper levels of the La Colonia Formation (upper Maastrichtian), Chubut Province, Argentina |journal=Cretaceous Research |volume=152 |language=en |pages=105674 |doi=10.1016/j.cretres.2023.105674 |bibcode=2023CrRes.15205674O |s2cid=260830333 |issn=0195-6671}}]
|
O'Gorman
et al.
|
2023
|
Valid
|
lK
|
South America
| |
| Cimoliasaurus
|
Leidy
|
1851
|
Valid
|
lK
|
| |
| Colymbosaurus
|
Seeley
|
1874
|
Valid
|
lJ
|
| |
| Crymocetus
|
Cope
|
1869
|
Valid
|
eK
|
| |
Cryonectes[{{cite journal |author=Peggy Vincent |author2=Nathalie Bardet |author3=Emanuela Mattioli |name-list-style=amp |title=A new pliosaurid from the Pliensbachian (Early Jurassic) of Normandy (Northern France) |journal=Acta Palaeontologica Polonica |year=2012 |volume=in press |url=http://app.pan.pl/article/item/app20110113.html |doi=10.4202/app.2011.0113 |doi-access=free }}]
|
Vincent
Bardet
Mattioli
|
2013
|
Valid
|
eJ
|
Europe
| |
| Cryptoclidus
|
Seeley
|
1892
|
Valid
|
mJ
|
Europe
| |
| Discosaurus
|
Leidy
|
1851
|
Valid
|
|
| |
Djupedalia[{{cite journal|author=Espen M. Knutsen |author2=Patrick S. Druckenmiller |author3=Jørn H. Hurum |name-list-style=amp |year=2012 |title=A new plesiosauroid (Reptilia: Sauropterygia) from the Agardhfjellet Formation (Middle Volgian) of central Spitsbergen, Norway |journal=Norwegian Journal of Geology |volume=92 |issue=2–3 |pages=213–234 |url=http://www.geologi.no/data/f/0/21/02/9_2401_0/NJG_2_3_2012_12_Knutsen_etal_Pr.pdf |archive-url=https://web.archive.org/web/20200807095510/https://www.geologi.no/data/f/0/21/02/9_2401_0/NJG_2_3_2012_12_Knutsen_etal_Pr.pdf |url-status=dead |archive-date=August 7, 2020 }}]
|
Knutsen
Druckenmiller
Hurum
|
2012
|
Valid
|
lJ
|
Europe
| |
| Dolichorhynchops
|
Williston
|
1903
|
Valid
|
|
North America
| |
| Dravidosaurus
|
Yadagiri
Ayyasami
|
1979
|
Nomen dubium
|
lK
|
Asia
|
Possibly a stegosaurian dinosaur |
| Eardasaurus
|
Ketchum
Benson
|
2022
|
Valid
|
mJ
|
Europe
| |
| Edgarosaurus
|
Druckenmiller
|
2002
|
Valid
|
eK
|
North America
| |
| Eiectus
|
Noè
Gómez-Pérez
|
2021
|
Valid
|
eK
|
Australia
| |
| Elasmosaurus
|
Cope
|
1868
|
Valid
|
|
North America
Asia
| |
| Embaphias
|
Cope
|
1894
|
Nomen dubium
|
lK
|
North America
| |
Eoplesiosaurus|
Benson
Evans
Druckenmiller
|
2012
|
Valid
|
eJ
|
Europe
| |
Eopolycotylus[PLESIOSAURS FROM THE UPPER CRETACEOUS (CENOMANIAN–TURONIAN) TROPIC SHALE OF SOUTHERN UTAH, PART 2: POLYCOTYLIDAE
]L. Barry Albright Iii, David D. Gillette, and Alan L. Titus, Journal of Vertebrate Paleontology, 2007, 27(1):41-58
|
Albright
Gillette
Titus
|
2007
|
Valid
|
|
| |
| Eretmosaurus
|
Seeley
|
1874
|
Valid
|
|
| |
| Eromangasaurus
|
Kear
|
2005
|
Valid
|
|
| |
| Eurycleidus
|
Andrews
|
1922
|
Valid
|
|
| |
| Eurysaurus
|
Gaudry
|
1878
|
Valid
|
|
| |
| Fluvionectes
|
Campbell
et al.
|
2021
|
Valid
|
lK
|
North America
| |
Franconiasaurus[{{Cite journal |last1=Sachs |first1=Sven |last2=Eggmaier |first2=Stefan |last3=Madzia |first3=Daniel |date=2024-02-16 |title=Exquisite skeletons of a new transitional plesiosaur fill gap in the evolutionary history of plesiosauroids |journal=Frontiers in Earth Science |volume=12 |doi=10.3389/feart.2024.1341470 |doi-access=free|bibcode=2024FrEaS..1241470S }}]
|
Sachs
Eggmaier
Madzia
|
2024
|
Valid
|
eJ
|
Europe
| |
| Fresnosaurus
|
Welles
|
1943
|
Valid
|
|
| |
| Futabasaurus
|
Sato
Hasegawa
Manabe
|
2006
|
Valid
|
lK
|
Asia
|Also a theropod nomen nudum ("Futabasaurus"). |
| Gallardosaurus
|
Gasparini
|
2009
| Valid
|
|
| |
| "Georgia"
|
Otschev
|
1976
| Preoccupied
|
|
|Preoccupied by a genus of mollusk, renamed Georgiasaurus. |
| Georgiasaurus
|
Otschev
|
1978
|
Valid
|
|
| |
| Goniosaurus
|
Meyer
|
1860{{Citation needed|date=June 2009}}
|
Valid
|
|
| |
Gronausaurus[{{cite journal |author=Oliver Hampe |year=2013 |title=The forgotten remains of a leptocleidid plesiosaur (Sauropterygia: Plesiosauroidea) from the Early Cretaceous of Gronau (Münsterland, Westphalia, Germany) |journal=Paläontologische Zeitschrift |volume=87 |issue=4 |pages=473–491 |doi=10.1007/s12542-013-0175-3 |bibcode=2013PalZ...87..473H |s2cid=129834688 }}]
|Hampe
|
2013
|
Valid
|
eK
|
Europe
| |
Hastanectes[{{cite journal |author=Roger B. J. Benson |author2=Hilary F. Ketchum |author3=Darren Naish |author4=Langan E. Turner |name-list-style=amp |title=A new leptocleidid (Sauropterygia, Plesiosauria) from the Vectis Formation (Early Barremian–early Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade |journal=Journal of Systematic Palaeontology |year=2013 |volume=11 |issue= 2|pages= 233–250|doi=10.1080/14772019.2011.634444 |bibcode=2013JSPal..11..233B |s2cid=18562271 }}]
|Benson
et al.
|
2012
|
Valid
|
eK
|
Europe
| |
| Hauffiosaurus
|
O'Keefe
|
2001
|
Valid
|
|
| |
| Hydralmosaurus
|
Welles
|
1943
|
Valid
|
|
| |
| Hydrorion
|
Grobmann
|
2006
|
Valid
|
|
| |
| Hydrotherosaurus
|
Welles
|
1943
|
Valid
|
lK
|
North America
| |
| Ischyrodon
|
von Meyer
|
1838
|
Jr. synonym
|
|
|
Junior synonym of Liopleurodon. |
| Jucha
|
Fischer
et al.
|
2020
|
Valid
|
eK
|
Europe
| |
| Kaiwhekea
|
Cruickshank
Fordyce
|
2002
|
Valid
|
lJ
|
Europe
| |
Kawanectes[{{cite journal |author=José P. O'Gorman |year=2016 |title=A small body sized non-aristonectine elasmosaurid (Sauropterygia, Plesiosauria) from the Late Cretaceous of Patagonia with comments on the relationships of the Patagonian and Antarctic elasmosaurids |journal=Ameghiniana |volume=53 |issue= 3|pages= 245–268|doi=10.5710/AMGH.29.11.2015.2928 |s2cid=133139689 |url=http://sedici.unlp.edu.ar/handle/10915/108247 |hdl=11336/54311 |hdl-access=free }}]
|
O'Gorman
|
2016
|
Valid
|
lK
|
South America
| |
| Kimmerosaurus
|
Brown
|
1981
|
Valid
|
|
| |
| Kronosaurus
|
Longman
|
1924
|
Valid
|
|
Australia, South America
| |
| Lagenanectes
|
Sachs
Hornung
Kear
|
2017
|
Valid
|
eK
|
Europe
| |
| Leivanectes
|
Páramo-Fonseca
O'Gorman
Gasparini
Padilla
Parra Ruge
|
2019
|
Valid
|
eK
|
South America
| |
| Leptocleidus
|
Andrews
|
1922
|
Valid
|
eK
|
Europe, Africa, Australia
| |
| Leurospondylus
|
Brown
|
1913
|
Valid
|
|
| |
| Libonectes
|
Carpenter
|
1997
|
Valid
|
|
| |
| Lindwurmia
|
Vincent
Storrs
|
2019
|
Valid
|
eJ
|
Europe
| |
| Liopleurodon
|
Sauvage
|
1873
|
Valid
|
|
| |
| Lorrainosaurus
|
Sachs
et al.
|
2023
|
Valid
|
mJ
|
Europe
|
Originally assigned to Simolestes.[{{cite journal|author1=Sachs, S.|author2=Madzia, D.|author3=Thuy, B.|author4=Kear, B.P.|date=October 16, 2023|title=The rise of macropredatory pliosaurids near the Early-Middle Jurassic transition|journal=Scientific Reports|volume=13|issue=17558|page=17558 |doi=10.1038/s41598-023-43015-y|doi-access=free|pmid=37845269 |pmc=10579310|bibcode=2023NatSR..1317558S }}] |
| Luetkesaurus
|
Kiprijanoff
|
1883
|
Valid
|
|
| |
| Luskhan
|
Fischer
et al.
|
2017
|
Valid
|
eK
|
Europe
| |
| Lusonectes
|
Smith
Araújo
Mateus
|
2011
|
Valid
|
eJ
|
Europe
| |
| Macroplata
|
Swinton
|
1930
|
Valid
|
eJ
|
Europe
| |
Makhaira[{{cite journal |author=Valentin Fischer |author2=Maxim S. Arkhangelsky |author3=Ilya M. Stenshin|author4=Gleb N. Uspensky |author5=Nikolay G. Zverkov |author6=Roger B. J. Benson |name-list-style=amp |year=2015 |title=Peculiar macrophagous adaptations in a new Cretaceous pliosaurid |journal=Royal Society Open Science |volume=2 |issue=12 |pages=150552 |doi=10.1098/rsos.150552 |pmc=4807462 |pmid=27019740 |bibcode=2015RSOS....250552F }}]
|
Fischer
et al.
|
2015
|
Valid
|
eK
|
| |
| Manemergus
|
Buchy
Metayer
Frey
|
2005
|
Valid
|
|
| |
Marambionectes[{{Cite journal |last1=O'Gorman |first1=Jose P. |last2=Canale |first2=Juan I. |last3=Bona |first3=Paula |last4=Tineo |first4=David E. |last5=Reguero |first5=Marcelo |last6=Cárdenas |first6=Magalí |date=2024-12-31 |title=A new elasmosaurid (Plesiosauria: Sauropterygia) from the López de Bertodano Formation: new data on the evolution of the aristonectine morphology |journal=Journal of Systematic Palaeontology |language=en |volume=22 |issue=1 |doi=10.1080/14772019.2024.2312302 |bibcode=2024JSPal..2212302O |issn=1477-2019}}]
|
O'Gorman
et al.
|
2024
|
Valid
|
lK
|
Antarctica
| |
| Maresaurus
|
Gasparini
|
1997
|
Valid
|
|
| |
| Marmornectes
|
Ketchum
Benson
|
2011
|
Valid
|
mJ
|
Europe
| |
Martinectes[{{Cite journal |last1=Clark |first1=Robert O. |last2=O’Keefe |first2=F. Robin |last3=Slack |first3=Sara E. |date=2023-12-24 |title=A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops |url=https://www.sciencedirect.com/science/article/pii/S0195667123003403 |journal=Cretaceous Research |volume=157 |pages=105812 |doi=10.1016/j.cretres.2023.105812 |s2cid=266546582 |issn=0195-6671|url-access=subscription }}]
|
Clark
O’Keefe
Slack
|
2024
|
Valid
|
lK
|
North America
| |
| Mauisaurus
|
Hector
|
1874
|
Valid
|
|
| |
| Mauriciosaurus
|
Frey
et al.
|
2017
|
Valid
|
lK
|
North America
| |
Megacephalosaurus[{{Cite journal|author=Bruce A. Schumacher|author2=Kenneth Carpenter|author3=Michael J. Everhart|name-list-style=amp |year=2013 |title=A new Cretaceous Pliosaurid (Reptilia, Plesiosauria) from the Carlile Shale (middle Turonian) of Russell County, Kansas |journal=Journal of Vertebrate Paleontology |volume=33 |issue=3 |pages=613–628 |doi=10.1080/02724634.2013.722576 |bibcode=2013JVPal..33..613S |s2cid=130165209}}]
|
Schumacher
Carpenter
Everhart
|
2013
|
Valid
|
lK
|
North America
| |
| Megalneusaurus
|
Knight
|
1898
|
Valid
|
|
| |
| Meyerasaurus
|
Smith
Vincent
|
2010
|
Valid
|
eJ
|
Europe
| |
| Microcleidus
|
Watson
|
1911
|
Valid
|
eJ
|
| |
| Monquirasaurus
|
Noè
Gómez-Pérez
|
2021
|
Valid
|
eK
|
South America
| |
| Morenosaurus
|
Welles
|
1943
|
Valid
|
|
| |
| Morturneria
|
Chatterjee
Creisler
|
1994
|
Jr. synonym
|
|
|Junior synonym of Aristonectes. |
| Muraenosaurus
|
Seeley
|
1874
|
Valid
|
mJ
|
Europe
| |
| Nakonanectes
|
Serratos
Druckenmiller
Benson
|
2017
|
Valid
|
lK
|
North America
| |
Nichollssaura[{{cite journal |last=Druckenmiller |first=Patrick S. |author2=Russell, Anthony P. |year=2009 |title=The new plesiosaurian genus Nichollssaura from Alberta, Canada: replacement name for the preoccupied genus Nichollsia |journal=Journal of Vertebrate Paleontology |volume=29 |issue=1 |page=276 |doi=10.1080/02724634.2009.10010379|bibcode=2009JVPal..29..276D |s2cid=83847722 }}]
|
Druckenmiller
Russell
|
2009
|
Valid
|
eK
|
North America
| |
| "Nichollsia"
|
Druckenmiller
Russell
|
2008
|
Preoccupied
|
|
|
Preoccupied by a genus of isopod, renamed Nichollssaura. |
| Occitanosaurus
|
Bardet
Fernandez
Garcia-Ramos
Superbiola
Pinuela
Ruiz-Omenaca
Vincent
|
2008
|
Valid
|
|
| |
| Ogmodirus
|
Williston
Moodie
|
1917
|
Valid
|
|
| |
| Oligosimus
|
Leidy
|
1872
|
Nomen dubium
|
lK
|
North America
| |
| Opallionectes
|
Kear
|
2006
|
Valid
|
|
| |
| Ophthalmothule
|
Roberts
et al.
|
2020
|
Valid
|
lJ-eK
|
Europe
| |
| Orophosaurus
|
Cope
|
1851
|
Valid
|
|
| |
| Pachycostasaurus
|
Cruickshank
Martill
|
1996
|
Valid
|
|
| |
| Pahasapasaurus
|
Schumacher
|
2007
|
Valid
|
|
| |
"Palmula"|
Albright
Gillette
Titus
|
2007
|
Preoccupied
|
|
|
Preoccupied by a genus of foraminifer, renamed Palmulasaurus. |
| Palmulasaurus
|
Albright
Gillete
Titus
|
2007
|
Valid
|
|
| |
| Pantosaurus
|
Marsh
|
1893
|
Valid
|
|
| |
| Peloneustes
|
Lydekker
|
1889
|
Valid
|
mJ
|
Europe
| |
| Peyerus
|
Stromer
|
1935
|
Jr. synonym
|
|
|
Junior synonym of Leptocleidus. |
| Picrocleidus
|
Andrews
|
1909
|
Jr. synonym
|
|
|
Junior synonym of Muraenosaurus. |
| Piptomerus
|
Cope
|
1887
|
Valid
|
|
| |
| Piratosaurus
|
Leidy
|
1865
|
Valid
|
|
| |
| Plesioelasmosaurus
|
Schumacher
Everhart
|
2022
|
Valid
|
lK
|
North America
| |
| Plesiopharos
|
Puértolas-Pascual
et al.
|
2021
|
Valid
|
eJ
|
Europe |
| Plesiopleurodon
|
Carpenter
|
1996
|
Valid
|
|
| |
| Plesiopterys
|
O'Keefe
|
2004
|
Valid
|
|
| |
| Plesiosaurus
|
Conybeare
|
1821
|
Valid
|
eJ
|
Europe
| |
| Pliosaurus
|
Owen
|
1841
|
Valid
|
|
| |
| Polycotylus
|
Cope
|
1869
|
Valid
|
|
| |
| Polyptychodon
|
Owen
|
1841
|
Valid
|
|
| |
Rhaeticosaurus[{{Cite journal|author1=Tanja Wintrich |author2=Shoji Hayashi |author3=Alexandra Houssaye |author4=Yasuhisa Nakajima |author5=P. Martin Sander |year=2017 |title=A Triassic plesiosaurian skeleton and bone histology inform on evolution of a unique body plan |journal=Science Advances |volume=3 |issue=12 |pages=e1701144 |doi=10.1126/sciadv.1701144 |pmid=29242826 |pmc=5729018 |bibcode=2017SciA....3E1144W }}]
|
Wintrich
et al.
|
2017
|
Valid
|
lT
|
Europe
| |
| Rhomaleosaurus
|
Seeley
|
1871
|
Valid
|
eJ
|
Europe
| |
| Sachicasaurus
|Páramo-Fonseca
Benavides-Cabra
Gutiérrez
|
2018
|
Valid
|
eK
|
South America
| |
Scalamagnus|Clark
O’Keefe
Slack
|
2024
|
Valid
|
lK
|
North America
| |
| Scanisaurus
|
Persson
|
1959
|
Valid
|
|
| |
| Seeleyosaurus
|
White
|
1940
|
Valid
|
eJ
|
Europe
| |
| Serpentisuchops
|
Persons
Street
Kelley
|
2022
|
Valid
|
lK
|
North America
| |
| Simolestes
|
Andrews
|
1909
|
Valid
|
|
| |
| Sinopliosaurus
|
Young
|
1944
|
Valid
|
eK
|
| |
Spitrasaurus[{{cite journal |author=Espen M. Knutsen |author2=Patrick S. Druckenmiller |author3=Jørn H. Hurum |name-list-style=amp |year=2012 |title=Two new species of long-necked plesiosaurians (Reptilia: Sauropterygia) from the Upper Jurassic (Middle Volgian) Agardhfjellet Formation of central Spitsbergen |journal=Norwegian Journal of Geology |volume=92 |issue=2–3 |pages=187–212 |url=http://www.geologi.no/data/f/0/21/03/4_2401_0/NJG_2_3_2012_11_Knutsen_etal_Pr.pdf |archive-url=https://web.archive.org/web/20200807154311/https://www.geologi.no/data/f/0/21/03/4_2401_0/NJG_2_3_2012_11_Knutsen_etal_Pr.pdf |url-status=dead |archive-date=August 7, 2020 }}]
|
Knutsen
Druckenmiller
Hurum
|
2012
|
Valid
|
lJ
|
Europe
| |
| Spondylosaurus
|
Fisher
|
1845
|
Jr. synonym
|
|
|
Junior synonym of Pliosaurus. |
Stratesaurus|
Benson
Evans
Druckenmiller
|
2012
|
Valid
|
eJ
|
Europe
| |
| Sulcusuchus
|
Gasparini
Spalletti
|
1992
|
Valid
|
lK
|
South America
| |
| Stenorhynchosaurus
|
Páramo
et al.
|
2016
|
Valid
|
eK
|
South America
| |
| Stereosaurus
|
Seeley
|
1869
|
Valid
|
|
| |
| Sthenarosaurus
|
Watson
|
1911
|
Valid
|
eJ
|
| |
| "Stretosaurus"
|
Tarlo
|
1959
|InValid
|
|
|Type specimen is undiagnostic and should be assigned to Thalassophonea indeterminate.[Espen M. Knutsen (2012). "A taxonomic revision of the genus Pliosaurus (Owen, 1841a) Owen, 1841b". Norwegian Journal of Geology 92 (2–3): 259–276. ISSN 0029-196X. Low resolution pdf High resolution pdf][Benson, R. B. J.; Evans, M.; Smith, A. S.; Sassoon, J.; Moore-Faye, S.; Ketchum, H. F.; Forrest, R. (2013). "A Giant Pliosaurid Skull from the Late Jurassic of England". In Butler, Richard J. PLoS ONE 8 (5): e65989. doi:10.1371/journal.pone.0065989. edit] |
| Strongylokrotaphus
|
Novozhilov
|
1964
|
Jr. synonym
|
|
|
Junior synonym of Pliosaurus. |
| Styxosaurus
|
Welles
|
1952
|
Valid
|
lK
|
North America
| |
| Taphrosaurus
|
Cope
|
1870
|
Valid
|
lK
| |
"Tatenectes"[{{Aut|O'Keefe, F.R.}} & {{Aut|Street, H.P.}} 2009; "Osteology of the Cryptocleidoid Plesiosaur Tatenectes laramiensis, with Comments on the Taxonomic Status of the Cimoliasauridae" Journal of Vertebrate Paleontology 29(1):48–57]
|
Knight
|
1900
|
Valid
|
|
| |
| Terminonatator
|
Sato
|
2003
|
Valid
|
lK
|
| |
| Thalassiodracon
|
Storrs
Taylor
|
1996
|
Valid
|
lT-eJ
|
Europe
| |
| Thalassiosaurus
|
Welles
|
1953
|
Jr. synonym
|
|
|
Junior synonym of Styxosaurus. |
| Thalassomedon
|
Welles
|
1943
|
Valid
|
lK
|
North America
| |
| Thalassonomosaurus
|
Welles
|
1943
|
Jr. synonym
|
|
|
Junior synonym of Styxosaurus. |
| Thaumatodracon
|
Smith
Araújo
|
2017
|
Valid
|
lK
|
Europe
| |
| "Thaumatosaurus"
|
Meyer
|
1841
|InValid
|
|
|Holotype is not diagnostic and can be referred to Pliosauroidea indet at best. |
| Thililua
|
Bardet
Suberbiola
Jalil
|
2003
|
Valid
|
lK
|
| |
Traskasaura[{{Cite journal |last1=O'Keefe |first1=F. Robin |last2=Armour Smith |first2=Elliott |last3=Clark |first3=Robert O. |last4=Otero |first4=Rodrigo A. |last5=Perella |first5=Anna |last6=Trask |first6=Patrick |date=2025-12-31 |title=A name for the Provincial Fossil of British Columbia: a strange new elasmosaur taxon from the Santonian of Vancouver Island |journal=Journal of Systematic Palaeontology |language=en |volume=23 |issue=1 |doi=10.1080/14772019.2025.2489938 |issn=1477-2019}}]
|
O'Keefe
et al.
|
2025
|
Valid
|
lK
|
North America
| |
| "Tremamesacleis"
|
White
|
1940
|
Jr. synonym
|
|
|
Junior synonym of Muraenosaurus. |
| Trematospondylus
|
Quenstedt
|
1858
|
Nomen dubium
|
mJ
|
Europe
| |
| Tricleidus
|
Andrews
|
1909
|
Valid
|
|
| |
| Trinacromerum
|
Cragin
|
1888
|
Valid
|
lK
|
North America
| |
| Tuarangisaurus
|
Wiffen
Moisley
|
1986
|
Valid
|
lK
|
| |
| "Turneria"
|
Chatterjee
Small
|
1989
|
Preoccupied
|
|
|
Preoccupied by a genus of ant, renamed Morturneria which is now recognised as a junior synonym of Aristonectes. |
| Umoonasaurus
|
Kear
Schroeder
Lee
|
2006
|
Valid
|
eK
|
Australia
| |
Unktaheela|
Clark
O’Keefe
Slack
|
2024
|
Valid
|
lK
|
North America
| |
Uronautes[E. D. Cope. 1876. On some extinct reptiles and Batrachia from the Judith River and Fox Hills Beds of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 28:340-359]
|
Cope
|
1870
|
Valid
|
lK
|
| |
Vectocleidus|
Benson
et al.
|
2012
|
Valid
|
eK
|
Europe
| |
Vegasaurus[{{cite journal |author=José P. O’Gorman |author2=Leonardo Salgado |author3=Eduardo B. Olivero |author4=Sergio A. Marenssi |name-list-style=amp |year=2015 |title=Vegasaurus molyi, gen. et sp. nov. (Plesiosauria, Elasmosauridae), from the Cape Lamb Member (lower Maastrichtian) of the Snow Hill Island Formation, Vega Island, Antarctica, and remarks on Wedellian Elasmosauridae |journal=Journal of Vertebrate Paleontology |volume=35 |issue=3 |pages=e931285 |doi=10.1080/02724634.2014.931285 |bibcode=2015JVPal..35E1285O |hdl=11336/53416 |s2cid=128965534 |hdl-access=free }}]
|
O'Gorman
Salgado
Olivero
Marenssi
|
2015
|
Valid
|
lK
|
Antarctica
| |
Vinialesaurus[Gasparini, Z., Bardet, N., and Iturralde-Vinent, M. (2002). "[http://www.medioambiente.cu/museo/viniasaur.htm A new cryptoclidid plesiosaur from the Oxfordian (Late Jurassic) of Cuba] {{webarchive|url=https://web.archive.org/web/20100702145258/http://www.medioambiente.cu/museo/viniasaur.htm |date=2010-07-02 }}". Geobios 35(2): 201-211.]
|
Gasparini
Bardet
Vinent
Iturralde
|
2002
|
Valid
|
lJ
|
| |
| Westphaliasaurus
|
Schwermann
Sander
|
2011
|
Valid
|
eJ
|
Europe
| |
| Woolungasaurus
|
Persson
|
1960
|
Valid
|
eK
|
| |
| Wunyelfia
|
Otero
Soto-Acuña
|
2020
|
Valid
|
lK
|
South America
| |
Yuzhoupliosaurus[Zhang, Y (1985). A new plesiosaur from Middle Jurassic of Sichuan Basin. Vertebrata PalAsiatica 23: 235-240.]
|
Zhang
|
1985
|
Valid
|
mJ
|
| |
| "Zahrisaurus"
|
Malkani
|
2019
|
Nomen nudum
|
lK
|
Asia
| |
| Zarafasaura
|
Vincent
Pereda-Suberbiola
Bouya
Amaghzaz
Meslouh
|
2011
|
Valid
|
lK
|
Africa
| |
