Paleobiota of the Djadochta Formation
{{Short description|Geological formation in Mongolia}}
File:Protoceratops specimen MPC-D 100 519.jpg
The Djadochta Formation (sometimes spelled Djadokhta, Djadokata, or Dzhadokhtskaya) is a geological formation in the Gobi Desert of Mongolia. It dates to the Campanian stage of the Late Cretaceous and is famous for its dinosaur fossils including Oviraptor, Protoceratops, and Velociraptor. It is also known for a high diversity of mammal and lizard fossils, and a complete catalogue of its fossil contents is shown below.
{{Paleobiota-key-compact}}
Vertebrates
=Amphibians=
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
Gobiates
| Indeterminate | Udyn Sayr | "Partial skeleton with partial urostyle."{{cite journal|last1=Roček|first1=Z.|date=2008|title=The Late Cretaceous frog Gobiates from Central Asia: its evolutionary status and possible phylogenetic relationships|journal=Cretaceous Research|volume=29|issue=4|pages=577–591|doi=10.1016/j.cretres.2008.01.005|bibcode=2008CrRes..29..577R |url=http://rocek.gli.cas.cz/Publications/Gobiates.pdf}} | A frog. | |
=Crocodylomorphs=
=Lizards=
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
Adamisaurus
| A. magnidentatus | Bayn Dzak, Tugriken Shireh, Ukhaa Tolgod | "Skulls and skeletons from multiple specimens."{{cite journal|last1=Sulimski|first1=A.|date=1978|title=New data on the genus Adamisaurus Sulimski 1972 (Sauria) from the Upper Cretaceous of Mongolia|journal=Palaeontologica Polonica|volume=58|pages=43–56|url=http://www.palaeontologia.pan.pl/Archive/1978_38_43-56_12-14.pdf}}{{cite journal|last1=Keqin|first1=G.|last2=Norell|first2=M. A.|date=2000|title=Taxonomic composition and systematics of late Cretaceous lizard assemblages from Ukhaa Tolgod and adjacent localities, Mongolian Gobi Desert|journal=American Museum Novitates|number=249|pages=1–118|hdl=2246/1596|hdl-access=free|doi=10.1206/0003-0090(2000)249<0001:TCASOL>2.0.CO;2|s2cid=129367764 |url=https://www.researchgate.net/publication/283992599}} | A teiid. Also present in the Barun Goyot Formation and Bayan Mandahu Formation. | | |||||
Aiolosaurus
| A. oriens | Ukhaa Tolgod | "Incomplete skull and partial skeleton." | A varanoid. | | |||||
Carusia
| C. intermedia | Bayn Dzak, Ukhaa Tolgod | "Skulls from multiple specimens." | A carusiid. Also present in the Barun Goyot Formation and Bayan Mandahu Formation. | | |||||
Cherminotus
| C. longifrons | Tugriken Shireh, Ukhaa Tolgod | "Skulls and partial skeleton." | A varanoid. Also present in the Barun Goyot Formation. | | |||||
Ctenomastax
| C. parva | Zos | An iguanid. Also present in the Barun Goyot Formation. | | |||||
Dzhadochtosaurus
| D. giganteus | Tugriken Shireh | A macrocephalosaur. | | |||||
Eoxanta
| E. lacertifrons | Ukhaa Tolgod | A scincomorph. Also present in the Barun Goyot Formation. | | |||||
Estesia
| E. mongoliensis | Bayn Dzak, Ukhaa Tolgod | A monstersaur. Also present in the Barun Goyot Formation. | | |||||
Flaviagama
| F. dzerzhinskii | Tugriken Shireh | "Skull and two vertebrae."{{cite journal|last1=Alifanov|first1=V. R.|date=1989|title=New priscagamas (Lacertilia) from the Upper Cretaceous of Mongolia and their systematic position in the Iguania|journal=Paleontological Journal|volume=4|pages=73–87|language=ru}} | A priscagamid. | | |||||
Globaura
| G. venusta | Bayn Dzak, Ukhaa Tolgod | A scincomorph. Also present in the Barun Goyot Formation. | | |||||
Gobiderma
| G. pulchrum | Udyn Sayr, Ukhaa Tolgod | "Skulls and skin impressions." | A monstersaur. Also present in the Barun Goyot Formation. | | |||||
Gobinatus
| G. arenosus | Ukhaa Tolgod | A teiid. Also present in the Barun Goyot Formation. | | |||||
Hymenosaurus
| H. clarki | Ukhaa Tolgod | A scincomorph. | | |||||
Isodontosaurus
| I. gracilis | Bayn Dzak, Tugriken Shireh, Ukhaa Tolgod, Zos | "Numerous skulls and a partial skeleton." | An iguanian. Also present in the Bayan Mandahu Formation. | | |||||
Macrocephalosaurus
| Indeterminate | Ukhaa Tolgod | "Partial skull and skeleton." | A teiid. Also present in the Barun Goyot Formation. | | |||||
Mimeosaurus
| M. crassus | Bayn Dzak, Ukhaa Tolgod, Zos Wash | "Partially complete skulls." | An acrodont. Also present in the Bayan Mandahu Formation. | | |||||
Myrmecodaptria
| M. microphagosa | Ukhaa Tolgod | A gekkotan. | | |||||
Ovoo
| O. gurval | Little Ukhaa Tolgod | A varanid. | | |||||
Parmeosaurus
| P. scutatus | Ukhaa Tolgod | "Articulated skull and skeleton." | A scincomorph. | | |||||
Phrynosomimus
| P. asper | Ukhaa Tolgod | An acrodont. Also present in the Barun Goyot Formation. | | |||||
Priscagama
| P. gobiensis | Bayn Dzak, Ukhaa Tolgod | An priscagamid. Also present in the Barun Goyot Formation. | | |||||
Saichangurvel
| S. davidsoni | Ukhaa Tolgod | An iguanian. | | |||||
Slavoia
| S. darevskii | Ukhaa Tolgod | A scincomorph. Also present in the Barun Goyot Formation. | | |||||
Telmasaurus
| T. grangeri | Bayn Dzak | "Partial skull and skeleton."{{cite journal|last1=Gilmore|first1=C. W.|year=1943|title=Fossil lizards of Mongolia|journal=Bulletin of the American Museum of Natural History|volume=81|pages=361–384}} | A varanid. | | |||||
Temujinia
| T. ellisoni | Tugriken Shireh, Ukhaa Tolgod | An iguanid. | | |||||
Tchingisaurus
| T. multivagus | Ukhaa Tolgod | A teiid. | | |||||
Unnamed scincomorph
| Indeterminate | Ukhaa Tolgod | A scincomorph. | | |||||
Varanoidea indet.
| Indeterminate | Ukhaa Tolgod | "Partial maxilla and vertebra." | A varanoid. | | |||||
Zapsosaurus
| Z. sceliphros | Tugriken Shireh | An iguanid. | |
=Mammals=
==Multituberculates==
==Therians==
=Pterosaurs=
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
Azhdarchidae indet.
| Indeterminate | Tugriken Shireh | "Indeterminate bone inside the gut cavity of a Velociraptor."{{cite journal | last1 = Hone | first1 = D. | last2 = Tsuihiji | first2 = T. | last3 = Watabe | first3 = M. | last4 = Tsogtbaatr | first4 = K. | title = Pterosaurs as a food source for small dromaeosaurs | doi = 10.1016/j.palaeo.2012.02.021 | journal = Palaeogeography, Palaeoclimatology, Palaeoecology | volume = 331-332 | page = 27 | year = 2012 | bibcode = 2012PPP...331...27H }} | An azhdarchid. | |
=Turtles=
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
rowspan="3" | Nanhsiungchelyidae indet.
| Indeterminate | Abdrant Nuru | A nanhsiungchelyid. | | |||||
Indeterminate
| Bayn Dzak | A nanhsiungchelyid. | | |||||
Indeterminate
| Udyn Sayr | A nanhsiungchelyid. | | |||||
rowspan="2" | Zangerlia
| Z. dzamynchondi | Zamyn Khondt | A nanhsiungchelyid. | | |||||
Z. ukhaachelys
| Ukhaa Tolgod | A nanhsiungchelyid. | |
=Dinosaurs=
== Ankylosaurids ==
== Marginocephalians ==
==Ornithopods==
==Sauropods==
== Theropods ==
=== Alvarezsaurs ===
=== Birds ===
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
Apsaravis
| A. ukhaana | Ukhaa Tolgod | "Partial postcranial skeleton."Clarke, Julia A., Norell, Mark A. (2002). "The morphology and phylogenetic position of Apsaravis ukhaana from the Late Cretaceous of Mongolia". American Museum Novitates, No. 3387, American Museum of Natural History, New York, NY. | A basal ornithurine bird. | | |||||
Elsornis
| E. keni | Tugriken Shireh | "Partial articulated skeleton lacking the skull."{{cite journal|last1=Chiappe|first1=L. M.|last2=Suzuki|first2=S.|last3=Dyke|first3=G. J.|last4=Watabe|first4=M.|last5=Tsogtbaatar|first5=K.|last6=Barsbold|first6=R.|date=2007|title=A new Enantiornithine bird from the Late Cretaceous of the Gobi desert|journal=Journal of Systematic Palaeontology|volume=5|issue=2|pages=193–208|doi=10.1017/S1477201906001969|bibcode=2007JSPal...5..193C |s2cid=85391743}} | An enantiornithe. | | |||||
Gobipteryx
| G. minuta | Ukhaa Tolgod | An enantiornithine. Also present in the Barun Goyot Formation. | | |||||
rowspan="3"; style="background:#e3f5ff;" | Protoceratopsidovum
| style="background:#e3f5ff;" | P. fluxuosum | style="background:#e3f5ff;" | Bayn Dzak | style="background:#e3f5ff;" | "Partial eggs."{{cite journal|last1=Mikhailov|first1=K. E.|date=1994|title=Theropod and protoceratopsian dinosaur eggs from the Cretaceous of Mongolia and Kazakhstan|journal=Paleontological Journal|volume=28|issue=2|pages=101–120|url=https://www.researchgate.net/publication/285873142}} | style="background:#e3f5ff;" | Eggs probably laid by a bird. | style="background:#e3f5ff;" | | |||||
style="background:#e3f5ff;" | P. minimum
| style="background:#e3f5ff;" | Baga Tariach, Tugriken Shireh | style="background:#e3f5ff;" | "Clutch of four eggs and one pole of egg." | style="background:#e3f5ff;" | Eggs probably laid by a bird. | style="background:#e3f5ff;" | | |||||
style="background:#e3f5ff;" | P. sincerum
| style="background:#e3f5ff;" | Bayn Dzak, Tugriken Shireh | style="background:#e3f5ff;" | "Multiple eggs and shells." | style="background:#e3f5ff;" | Eggs probably laid by a bird. | style="background:#e3f5ff;" | | |||||
style="background:#e3f5ff;" | Styloolithus
| style="background:#e3f5ff;" | S. sabathi | style="background:#e3f5ff;" | Bayn Dzak | style="background:#e3f5ff;" | "Partial to complete eggs."{{cite journal | last1 = Varricchio | first1 = D.J. | last2 = Barta | first2 = D.E. | year = 2015 | title = Revisiting Sabath's "Larger Avian Eggs" from the Gobi Cretaceous | url = https://www.app.pan.pl/article/item/app000852014.html | journal = Acta Palaeontologica Polonica | volume = 60 | issue = 1| pages = 11–25 }} | style="background:#e3f5ff;" | Eggs probably laid by a bird. | style="background:#e3f5ff;" | |
===Dromaeosaurs===
===Non-maniraptoran theropods===
===Oviraptorosaurs===
===Troodontids===
Flora
class="wikitable sortable" | |||||
Genus | Species | Location | Material | Notes | Images |
---|---|---|---|---|---|
Radicites
| R. gobiensis | Bayn Dzak | A tracheophyte, likely conifer. | |
See also
References
{{reflist}}
{{DEFAULTSORT:Paleobiota of the Djadochta Formation}}