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A [[true owl]], a species of ''[[Aegolius]]. |
A [[true owl]], a species of ''[[Aegolius]]''. |
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A stem group representative of [[Pici (taxon)|Pici]]. The type species is ''Picavus litencicensis''. |
A stem group representative of [[Pici (taxon)|Pici]]. The type species is ''Picavus litencicensis''. |
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''[[Pipilo naufragus]]''<ref>{{Cite journal|author=Storrs L. Olson and David B. Wingate |year=2012 |title=A new species of towhee (Aves: Emberizidae: ''Pipilo'') from Quaternary deposits on Bermuda |journal=Proceedings of the Biological Society of Washington |volume=125 |issue=1 |pages=85–96 |doi=10.2988/11-21.1 }}</ref> |
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Sp. nov |
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Valid |
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Olson & Wingate |
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Middle Pleistocene to Holocene |
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A [[towhee]], a species of ''[[Pipilo]]''. |
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Revision as of 10:58, 7 April 2013
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This article records new taxa of fossil archosaurs of every kind that have been described during the year 2012, as well as other significant discoveries and events related to paleontology of archosaurs that occurred in the year 2012.
Pseudosuchians
Research
- The postcranial skeleton of Sebecus icaeorhinus is described by Diego Pol et al. (2012).[1]
- Skull anatomy of Dakosaurus and Plesiosuchus is described by Mark T. Young et al. (2012).[2]
- Kemkemia auditorei, previously thought to be a theropod dinosaur, is reinterpreted as a member of Crocodyliformes by Gabriel Lio et al. (2012).[3]
- A study including a supertree of Crocodyliformes is published by Mario Bronzati, Felipe Chinaglia Montefeltro and Max C. Langer (2012).[4]
New taxa
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et sp. nov |
Valid |
Holliday & Gardner |
Cenomanian |
 | ||||
|
Gen. et sp. nov |
Valid |
Desojo, Ezcurra & Kischlat |
Late Carnian or early Norian |
An aetosaur. |
||||
|
Gen. et sp. nov |
Valid |
Iori & Garcia |
A trematochampsid. The type species is Barreirosuchus franciscoi. |
|||||
|
Sp. nov |
Valid |
Brochu, Parris, Grandstaff, Denton & Gallagher |
Maastrichtian or Danian |
A crocodilian from New Jersey. |
||||
|
Gen. et sp. nov |
Valid |
Sennikov |
Early Triassic |
A ctenosauriscid. The type species is Bystrowisuchus flerovi. |
||||
|
sp nov |
Valid |
Brochu & Storrs |
Pliocene to Pleistocene |
A species of Crocodylus. |
 | |||
|
Gen. et sp. nov. |
Valid |
Li et al. |
A poposauroid. The type species is Diandongosuchus fuyuanensis. |
 | ||||
|
Gen. et sp. nov |
Valid |
Martinelli et al. |
Late Cretaceous |
A peirosaurid. The type species is Gasparinisuchus peirosauroides. |
Newly named basal dinosauriforms
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et sp. nov |
Valid |
Kammerer, Nesbitt, & Shubin |
?Carnian-Norian |
Timezgadiouine Formation |
A silesaurid. |
Non-avian dinosaurs
Research
- A study including a large phylogenetic analysis of non-coelurosaurian tetanuran theropod dinosaurs is published by Matthew T. Carrano, Roger B. J. Benson and Scott D. Sampson (2012).[14]
- A study including a systematic revision of the family Dromaeosauridae and a large phylogenetic analysis of paravian theropod dinosaurs (both avian and non-avian) is published by Alan Turner, Peter Makovicky and Mark Norell (2012).[15]
- A specimen of Microraptor is described by Quanguo Li et al. (2012), with melanosome imprints making it possible to determine the plumage coloration and iridescence in the plumage.[16]
- A new specimen of Austroraptor cabazai is described by Philip J. Currie and Ariana Paulina Carabajal (2012).[17]
- A specimen of Mei long is described by Chunling Gao et al. (2012).[18]
- A study of Khaan mckennai was published by Amy M. Balanoff and Mark Norell (2012).[19]
- A new information on Yixianosaurus longimanus is published by T. Alexander Dececchi, Hans C. E. Larsson and David W. E. Hone (2012).[20]
- Three specimens of Ornithomimus with evidence of feathers are described by Darla K. Zelenitsky et al. (2012).[21]
- A new information on the anatomy of the holotype specimen of Nqwebasaurus thwazi is published by Jonah N. Choiniere, Catherine A. Forster and William J. de Klerk (2012).[22]
- A study of Alioramus was published by Stephen Brusatte, Thomas D. Carr and Mark Norell (2012).[23]
- Abdominal contents of two specimens of Sinocalliopteryx gigas are described by Lida Xing et al. (2012).[24]
- A study of musculoskeletal anatomy, three-dimensional body proportions and body mass evolution in allosauroid theropod dinosaurs is published by Karl T. Bates, Roger B. J. Benson, and Peter L. Falkingham (2012).[25]
- A study of the braincase of Sinraptor dongi is published by Ariana Paulina Carabajal and Philip J. Currie (2012).[26]
- A study of Kelmayisaurus petrolicus, interpreting it as likely to be a member of Carcharodontosauridae, is published by Stephen L. Brusatte, Roger B.J. Benson and Xing Xu (2012).[27]
- Description of pectoral girdle and forelimb of Majungasaurus crenatissimus is published by Sara H. Burch and Matthew T. Carrano (2012).[28]
- A study of Early Cretaceous Australian theropod dinosaurs was published by Roger B. J. Benson et al. (2012).[29]
- A study including a phylogenetic analysis of titanosauriform sauropod dinosaurs is published by Michael D'Emic (2012).[30]
- The postcranial skeletal pneumaticity in the skeletons of five taxa of early sauropodomorph dinosaurs is described by Adam M. Yates, Mathew J. Wedel and Matthew F. Bonnan (2012).[31]
- The study on the presumed course of the recurrent laryngeal nerve in sauropod dinosaurs is published by Mathew J. Wedel (2012).[32]
- Pachysuchus, previously thought to be an Early Jurassic phytosaur, is reinterpreted as a sauropodomorph dinosaur by Paul M. Barrett and Xu Xing (2012).[33]
- A study of vertebral laminae of sauropod dinosaurs is published by Jeffrey A. Wilson (2012).[34]
- A study on the neural spine bifurcation in diplodocoid sauropod dinosaurs is published by D. Cary Woodruff and Denver W. Fowler (2012).[35]
- A study of the postcranial skeletal pneumaticity in the skeletons of Saltasaurus, Neuquensaurus and Rocasaurus is published by Ignacio A. Cerda, Leonardo Salgado and Jaime E. Powell (2012).[36]
- A study of Early Cretaceous sauropod dinosaurs from North America is published by Michael D. D’Emic and Brady Z. Foreman (2012). Among other findings, additional sauropod material from the Cloverly Formation of Wyoming was referred to Sauroposeidon, Paluxysaurus was synonymized with Sauroposeidon, Rugocaudia was considered a nomen dubium and the cause of the North American sauropod extinction in the middle of the Cretaceous period was discussed.[37]
- The first sauropod dinosaur (a member of Titanosauria) from Antarctica described by Ignacio A. Cerda et al. (2012).[38]
- A study of biomechanics, pectoral girdle articulation and body mass of the Triassic dinosaurs from Brazil (Staurikosaurus, Saturnalia, Pampadromaeus, Guaibasaurus and Unaysaurus) is published by Rafael Delcourt, Sergio A. K. de Azevedo, Orlando N. Grillo and Fernanda O. Deantoni (2012).[39]
- Anatomy of Fruitadens haagarorum is described by Richard J. Butler et al. (2012).[40]
- A study including a phylogenetic analysis of ankylosaurian dinosaurs is published by Richard S. Thompson et al. (2012).[41]
- A study including a phylogenetic analysis of iguanodontian ornithopod dinosaurs is published by Andrew T. McDonald (2012).[42]
- A study of the forearm orientation in hadrosaurids is published by Phil Senter (2012).[43]
- Skin impressions of two different species of Saurolophus are described by Phil Bell (2012).[44]
- A new description of Eolambia caroljonesa is published by Andrew T. McDonald et al. (2012).[45]
- A study of anatomy and relationships of Bolong yixianensis is published by Wu Wenhao and Pascal Godefroit (2012).[46]
- An overview of Early Cretaceous iguanodontian ornithopod dinosaurs of England and Belgium is published by David B. Norman (2012).[47]
- A study of the bone histology of Tenontosaurus tilletti is published by Sarah Werning (2012).[48]
- A study of the bone histology of Dysalotosaurus lettowvorbecki is published by Tom R. Hübner (2012).[49]
- A study questioning the interpretation of Torosaurus as a junior synonym and a growth stage of Triceratops was published by Nicholas R. Longrich and Daniel J. Field (2012).[50]
- A study of some of the earliest known dinosaur assemblages is published by Martín D. Ezcurra (2012). Among other findings, Teyuwasu is interpreted as a member of the clade Dinosauriformes of uncertain phylogenetic placement and a nomen dubium.[51]
- A study of anatomical variability exhibited by major dinosaur groups living during the latest Cretaceous is published by Stephen L. Brusatte et al. (2012).[52]
- A study of biodiversity of late Maastrichtian non-avian dinosaurs is published by Jean Le Loeuff (2012).[53]
New taxa
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et sp. nov |
Valid |
Makovicky, Apesteguía & Gianechini |
Late Cretaceous (Cenomanian or Turonian) |
A coelurosaurian, a probable relative of alvarezsaurids. The type species is Alnashetri cerropoliciensis. |
||||
|
Gen. et sp. nov |
Valid[56] |
D’Emic |
Early Cretaceous |
Trinity Group |
A titanosauriform sauropod, a member of the clade Somphospondyli. The type species is Astrophocaudia slaughteri. |
|||
|
Gen. et sp. nov |
Valid |
Godefroit et al. |
Late Cretaceous |
A basal hadrosauroid. The type species is Batyrosaurus rozhdestvenskyi. |
||||
|
Gen. et sp. nov |
Valid |
Novas et al. |
A coelurosaur. The type species is Bicentenaria argentina. |
|||||
|
Gen. et sp. nov |
Valid |
Agnolin, Powell, Novas, & Kundrát |
An alvarezsaurid. |
|||||
|
Gen. et sp. nov |
Valid[61] |
Sánchez-Hernández & Benton |
Early Cretaceous (early Barremian) |
A basal ceratosaurian. The type species is Camarillasaurus cirugedae. |
||||
|
Gen. et sp. nov |
Valid |
Carballido et al. |
Early Cretaceous (Aptian or Albian) |
A rebbachisaurid sauropod. The type species is Comahuesaurus windhauseni. |
||||
|
Gen. et comb. nov |
Valid |
Ryan, Evans & Shepherd |
Late Cretaceous |
A centrosaurine ceratopsian, a new genus for "Centrosaurus" brinkmani Ryan & Russell (2005). |
||||
|
Gen. et sp. nov |
Valid |
Mannion & Otero |
Middle Cenomanian to Turonian |
A lithostrotian titanosaur. The type species is Elaltitan lilloi. |
||||
|
Gen. et sp. nov |
Valid |
Pol & Rauhut |
Aalenian or Bajocian |
An abelisaurid. The type species is Eoabelisaurus mefi. |
||||
|
Gen. et sp. nov |
Valid |
Ruiz-Omeñaca et al. |
Barremian |
A basal ornithopod. The type species is Gideonmantellia amosanjuanae. |
||||
|
Gen. et sp. nov |
Valid |
Ryan, Evans, Currie, Brown, & Brinkman |
Late Santonian |
|||||
|
Gen. et sp. nov |
Valid |
Jin, Chen & Godefroit |
Early Valanginian to early Barremian |
A basal ornithomimosaur. The type species is Hexing qingyi. |
||||
|
Gen. et sp. |
Valid |
Ramírez-Velasco et al.. |
Santonian |
A basal hadrosauroid. The type species is Huehuecanauhtlus tiquichensis. |
 | |||
|
Gen. et sp. nov |
Valid |
Allain et al. |
Late Early Cretaceous |
Savannakhet Basin |
A spinosaurid. The type species is Ichthyovenator laosensis. |
|||
|
Gen. et sp. nov |
Valid[72] |
Tschopp & Mateus |
Late Jurassic (Kimmeridgian) |
A diplodocine diplodocid sauropod. The type species is Kaatedocus siberi. |
||||
|
Gen. et sp. nov |
Valid |
Godefroit, Bolotsky & Lauters |
Late Cretaceous, possibly late Maastrichtian |
A saurolophine hadrosaurid. The type species is Kundurosaurus nagornyi. |
 | |||
|
Gen. et sp. nov |
Valid |
Coria, Riga & Casadío |
Late Cretaceous (late Campanian or early Maastrichthian) |
A hadrosaurid. The type species is Lapampasaurus cholinoi. |
||||
|
Gen. et sp. nov |
Valid |
Prieto-Márquez & Brañas |
Late Cretaceous (late Campanian) |
A saurolophine hadrosaurid. The type species is Latirhinus uitstlani. |
||||
|
Gen. et comb. nov |
Valid |
Prieto-Márquez, Chiappe & Joshi |
Late Campanian |
A lambeosaurine hadrosaurid, a new genus for "Lambeosaurus" laticaudus (Morris, 1981). |
 | |||
|
Gen. et sp. nov |
Valid |
Senter, Kirkland & DeBlieux |
Early Aptian |
A possible therizinosauroid. The type species is Martharaptor greenriverensis. |
 | |||
|
sp nov |
Valid |
Gong et al. |
Early Cretaceous |
A species of Microraptor. |
||||
|
Sp. nov |
Valid |
Ősi et al. |
Santonian |
A rhabdodontid ornithopod, a species of Mochlodon. |
||||
|
Gen. et sp. nov |
Valid |
Ji et al. |
Early Cretaceous |
An oviraptorosaur. The type species is Ningyuansaurus wangi. |
||||
|
Gen. et sp. nov |
Valid |
Buffetaut |
Late Jurassic |
A spinosaurid. The type species is Ostafrikasaurus crassiserratus. |
||||
|
sp nov |
Valid |
Fiorillo & Tykoski |
Maastrichtian |
Third known species of Pachyrhinosaurus. |
||||
|
Gen. et sp. nov |
Valid |
Sereno |
Hettangian to Sinemurian |
A heterodontosaurid. The type species is Pegomastax africana. |
||||
|
Gen. et sp. nov |
Valid |
Xu et al. |
Campanian |
A troodontid. Its type species is Philovenator curriei. |
||||
|
Gen. et sp. nov |
Valid |
McDonald et al. |
Early Cretaceous (early Albian) |
An iguanodont ornithopod closely related to Iguanodon and the clade Hadrosauroidea. The type species is Proa valdearinnoensis. |
||||
|
Gen. et sp. nov |
Valid |
Woodruff |
Aptian or Albian |
A titanosauriform sauropod. The type species is Rugocaudia cooneyi. |
||||
|
Gen. et sp. nov |
Valid[88] |
Cau, Dalla Vecchia & Fabbri |
Cenomanian |
A carcharodontosaurid. The type species is Sauroniops pachytholus. |
||||
|
Gen. et sp. nov |
Valid |
Rauhut et al. |
Upper Kimmeridgian |
A megalosauroid. The type species is Sciurumimus albersdoerferi. |
 | |||
|
Gen. et sp. nov |
Valid |
Ryan, Evans, Currie, Brown, & Brinkman |
Late Campanian |
A leptoceratopsid ceratopsian. |
||||
|
Gen. et sp. nov |
Valid |
Ryan, Evans & Shepherd |
Late Cretaceous (middle Campanian) |
A centrosaurine ceratopsian. The type species is Xenoceratops foremostensis. |
||||
|
Gen. et sp. nov |
Valid |
Zheng, Jin, Shibata, Azuma, & Yu |
Aptian-Cenomanian |
A basal ornithopod. |
||||
|
Gen. et sp. nov |
Valid |
Senter et al.. |
Early Cretaceous, possibly Barremian |
A dromaeosaurid. The type species is Yurgovuchia doellingi. |
 | |||
|
Gen. et sp. nov |
Valid |
Xu et al.. |
Early Cretaceous |
A basal tyrannosauroid. The type species is Yutyrannus huali. |
 |
Newly named birds
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Sp. nov |
Valid |
Olson |
Pleistocene to Holocene |
|||||
|
Sp nov |
Valid |
Zhang, Huang, James, & Hou |
Middle Pleistocene |
|||||
|
Sp. nov |
Valid |
Zelenkov & Kurochkin |
Middle Miocene |
A duck, a species of Aix. |
||||
|
Sp nov |
Valid |
Worthy |
Late Oligocene or early Miocene |
A darter. |
||||
|
Sp nov |
Valid |
Guerra, Bover & Alcover |
Early Pleistocene |
|||||
|
Gen. et sp. nov |
Valid |
Manegold & Louchart |
Early Pliocene |
A woodpecker. The type species is Australopicus nelsonmandelai. |
||||
|
Gen. et sp. nov |
Valid |
Ksepka & Clarke |
Eocene |
A stem parrot, a member of Pan-Psittaciformes. The type species is Avolatavis tenens. |
||||
|
Gen. et sp. nov |
Valid |
De Pietri & Mayr |
Early Miocene |
A scolopacid or a relative of scolopacids. The type species is Becassius charadriioides. |
||||
|
Gen. et sp. nov |
Valid |
Martin, Kurochkin, & Tokaryk |
Maastrichtian, possibly also Campanian |
Frenchman Formation |
A hesperornithiform. The type species is B. americanus; the genus also contains B. baileyi, B. mongoliensis and possibly also B. varneri. |
|||
|
Gen. et sp. nov |
Valid |
Zelenkov |
Middle Miocene |
A duck. The type species is Chenoanas deserta. |
||||
|
Sp nov |
Valid |
Chandler |
Miocene (Santacrucian) |
A tinamou, a species of Crypturellus. |
||||
|
Sp. nov |
Valid |
De Pietri & Mayr |
Early Miocene |
A scolopacid, possibly a species of Elorius. |
||||
|
Gen. et comb. nov |
Valid |
Zelenkov |
Late Miocene |
A goose, a new genus for "Heterochen" vicinus Kurochkin, 1976. |
||||
|
Sp nov |
Valid |
Zelenkov & Kurochkin |
Late Pliocene |
|||||
|
Sp nov |
Valid |
O'Connor, Sun, Xu, Wang & Zhou |
Early Aptian |
A species of Jeholornis. |
||||
|
Gen. et sp. nov |
Valid |
Ksepka, Fordyce, Ando, & Jones |
Oligocene |
A penguin. The genus contains two species: Kairuku waitaki and Kairuku grebneffi. |
||||
|
Sp nov |
Valid |
Zhang et al. |
Middle Pleistocene |
A stork, a species of Leptoptilos. |
||||
|
Gen. et sp. nov |
Valid |
Mayr & Zvonok |
Middle Eocene |
A pelagornithid. The type species is Lutetodontopteryx tethyensis. |
||||
|
Gen. et sp. et comb. nov. |
Valid |
Zelenkov & Kurochkin |
Middle Miocene, possibly also late Miocene |
A duck. The type species is Mioquerquedula minutissima; genus also contains "Anas" velox (Milne-Edwards, 1868). |
||||
|
Sp nov |
Valid |
Rando et al. |
A scops owl. |
|||||
|
Gen. et comb. et sp. nov |
Valid |
De Pietri & Mayr |
Early Miocene |
A scolopacid, a new genus for the species "Tringa" gracilis; genus may also contain a new species ?Parvelorius calidris. |
||||
|
Gen. et sp. nov |
Valid |
Mayr & Gregorová |
Early Oligocene |
A stem group representative of Pici. The type species is Picavus litencicensis. |
||||
|
Sp. nov |
Valid |
Olson & Wingate |
Middle Pleistocene to Holocene |
|||||
|
Gen. et sp. nov |
Valid |
Zelenkov & Kurochkin |
Late Pliocene |
A probable close relative of longspurs. The type species is Pliocalcarius orkhonensis. |
||||
|
Sp. nov |
Valid |
Agnolín & Noriega |
Late Miocene |
A rhea. |
||||
|
Sp nov |
Valid |
Zelenkov & Kurochkin |
Late Pliocene |
A finch, a species of Rhodospiza. |
||||
|
Gen. et sp. nov |
Valid |
Naish, Dyke, Cau, Escuillié, Godefroit |
Late Cretaceous |
A possible basal ornithuromorph;[114] alternatively, it could be a large pterosaur.[115][116] |
||||
|
Gen. et sp. nov |
Valid |
Wang, Mayr, Zhang, & Zhou |
Middle Eocene |
|||||
|
Gen. et sp. nov |
Valid |
Zhou, Zhou, & O’Connor |
Aptian |
A basal ornithuromorph. The type species is Schizooura lii. |
||||
|
Gen. et comb. nov |
Valid |
De Pietri & Mayr |
Early Miocene |
A scolopacid or a relative of scolopacids, a new genus for the species "Totanus" lartetianus. |
||||
|
Gen. et sp. nov |
Valid |
Li et al. |
Early Cretaceous |
A longipterygid enantiornithine. The type species is Shengjingornis yangi. |
||||
|
Gen. et sp. nov |
Valid |
Mayr & Smith |
Early Oligocene |
An albatross. The type species is Tydea septentrionalis. |
||||
|
Gen. et sp. nov |
Valid |
Hu et al. |
Early Cretaceous |
An enantiornithine bird. The type species is Xiangornis shenmi. |
Newly named pterosaurs
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et sp. nov |
Valid |
Novas et al. |
Late Cretaceous |
An azhdarchid. The type species is Aerotitan sudamericanus. |
||||
|
Gen. et sp. nov |
Valid |
Hone et al. |
Late Kimmeridgian |
Pfraundorf-Heitzenhofen Basin |
A rhamphorhynchid. The type species is Bellubrunnus rothgaengeri. |
 | ||
|
Sp. nov |
Valid |
Lü & Hone |
Middle Jurassic |
An anurognathid, a species of Dendrorhynchoides. |
||||
|
Gen. et sp. nov |
Valid |
Vullo et al. |
Upper Barremian |
A tapejarid. The type species is Europejara olcadesorum. |
 | |||
|
Gen. et sp. nov |
Valid |
Lü, Ji, Wei, & Liu |
Barremian |
|||||
|
Gen. et sp. nov |
Valid |
Wang, Kellner, Jiang, & Cheng |
Early Cretaceous |
A close relative of Ludodactylus. The type species is Guidraco venator. |
 | |||
|
Gen. et sp. nov |
Valid |
Cheng, Wang, Jiang, & Kellner |
Middle Jurassic |
|||||
|
Gen. et sp. nov |
Valid |
Lü et al. |
Early Cretaceous |
A boreopterid. The type species is Moganopterus zhuiana. |
||||
|
Gen. et sp. |
Valid |
Lü, Unwin, Zhao, Gao & Shen. |
Middle Jurassic |
Archosauria incertae sedis
Newly named archosaurs with uncertain affinities
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et sp. nov |
Valid |
Niedźwiedzki, Sulej & Dzik |
Latest Norian/Early Rhaetian |
A large predatory archosaur of uncertain phylogenetic placement, the largest known predatory archosaur from the Late Triassic and Early Jurassic of central Europe. |
References
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{{cite book}}:|editor=has generic name (help)CS1 maint: multiple names: authors list (link) - ^ Fernando E. Novas, Martin D. Ezcurra, Federico L. Agnolín, Diego Pol and Raúl Ortíz (2012). "New Patagonian Cretaceous theropod sheds light about the early radiation of Coelurosauria" (PDF). Revista del Museo Argentino de Ciencias Naturales, nueva serie. 14 (1): 57–81.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Federico L. Agnolin, Jaime E. Powell, Fernando E. Novas and Martin Kundrát (2012). "New alvarezsaurid (Dinosauria, Theropoda) from uppermost Cretaceous of north-western Patagonia with associated eggs". Cretaceous Research. 35: 33–56. doi:10.1016/j.cretres.2011.11.014.
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{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ a b Michael J. Ryan, David C. Evans and Kieran M. Shepherd (2012). "A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta". Canadian Journal of Earth Sciences. 49 (10): 1251–1262. doi:10.1139/e2012-056.
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