2013 in archosaur paleontology

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The year 2013 in archosaur paleontology was eventful. Archosaurs include the only living dinosaur group — birds — and the reptile crocodilians, plus all extinct dinosaurs, extinct crocodilian relatives, and pterosaurs. Archosaur palaeontology is the scientific study of those animals, especially as they existed before the Holocene Epoch began about 10,000 years ago. The year 2013 in paleontology included various significant developments regarding archosaurs.

This article records new taxa of fossil archosaurs of every kind that have been described during the year 2013, as well as other significant discoveries and events related to paleontology of archosaurs that occurred in the year 2013.

Research

New taxa

Name Novelty Status Authors Age Unit Location Notes Images

Agaresuchus[2]

Sp. nov

Valid[3]

Puértolas-Pascual, Canudo & Moreno-Azanza

Late Cretaceous (late Maastrichtian)

Conqués Formation

Spain

A eusuchian crocodylomorph belonging to the family Allodaposuchidae. Originally described as a species of Allodaposuchus; Narváez et al. (2016) transferred it to the genus Agaresuchus.[4]

Almadasuchus[5]

Gen. et sp. nov

Valid

Pol et al.

Late Jurassic (Oxfordian)

Sediments alternatively referred by different authors to the Cañadón Calcáreo Formation or to the Puesto Almada Member of the Cañadón Asfalto Formation[5]

Argentina

A non-crocodyliform crocodylomorph. The type species is Almadasuchus figarii.

Anteophthalmosuchus escuchae[6]

Sp. nov

Valid

Buscalioni et al.

Early Cretaceous (Albian)

Escucha Formation

Spain

A goniopholidid, a species of Anteophthalmosuchus.

Apatosuchus[7]

Gen. et comb. nov

Valid

Sues & Schoch

Late Triassic (Norian)

Löwenstein Formation

Germany

A non-crocodylomorph loricatan pseudosuchian, a new genus for "Halticosaurus" orbitoangulatus Huene (1932).

Batrachomimus[8]

Gen. et sp. nov

Valid

Montefeltro et al.

Late Jurassic

Brazil

A neosuchian crocodyliform related to Rugosuchus and Shamosuchus. The type species is Batrachomimus pastosbonensis.

Brochuchus[9]

Gen. et comb. nov

Valid

Conrad et al.

Miocene

Hiwegi Formation

Kenya

A new genus for "Crocodylus" pigotti.

Caiman gasparinae[10]

Sp. nov

Valid

Bona & Carabajal

Late Miocene

Argentina

A caiman. Originally described as a species of Caiman; transferred to the separate genus Paranasuchus by Bona et al. (2024).[11]

Caiman venezuelensis[12]

Sp. nov

Junior synonym

Fortier & Rincón

Pleistocene

Venezuela

A caiman, a species of Caiman. Considered to be a junior synonym of extant spectacled caiman (Caiman crocodilus) by Cidade et al. (2019).[13]

Centenariosuchus[14]

Gen. et sp. nov

Valid

Hastings et al.

Early or middle Miocene

Cucaracha Formation

Panama

A caiman. The type species is Centenariosuchus gilmorei.

Chalawan[15]

Gen. et comb. nov

Valid[16]

Martin et al.

Early Cretaceous

Phu Kradung Formation

Thailand

A pholidosaurid, a new genus for "Sunosuchus" thailandicus.

Cricosaurus lithographicus[17]

Sp. nov

Valid

Herrera, Gasparini & Fernández

Late Jurassic (Tithonian)

Neuquén Basin

Argentina

A metriorhynchid, a species of Cricosaurus.

Crocodylus falconensis[18]

Sp. nov

Valid

Scheyer et al.

Early Pliocene

San Gregorio Formation

Venezuela

A species of Crocodylus.

Culebrasuchus[14]

Gen. et sp. nov

Valid

Hastings et al.

Probably early Miocene

Culebra Formation

Panama

A caiman. The type species is Culebrasuchus mesoamericanus.

Eocaiman itaboraiensis[19]

Sp. nov

Valid

Pinheiro et al.

Itaboraian

Itaboraí Basin

Brazil

A species of Eocaiman.

Globidentosuchus[18]

Gen. et sp. nov

Valid

Scheyer et al.

Late Miocene

Urumaco Formation

Venezuela

A caiman. The type species is Globidentosuchus brachyrostris

Gondwanasuchus[20]

Gen. et sp. nov

Valid

Marinho et al.

Late Cretaceous

Bauru Group

Brazil

A baurusuchid. The type species is Gondwanasuchus scabrosus.

Hulkepholis[6]

Gen. et comb. et sp. nov

Valid

Buscalioni et al.

Early Cretaceous

Escucha Formation
Grinstead Clay Formation

Spain
United Kingdom

A goniopholidid, a new genus for "Goniopholis" willetti Salisbury & Naish (2011); genus also contains a new species Hulkepholis plotos.

Maledictosuchus[21]

Gen. et sp. nov

Valid

Parrilla-Bel et al.

Middle Jurassic (middle Callovian)

Ágreda Formation

Spain

A metriorhynchid. The type species is Maledictosuchus riclaensis.

Paluxysuchus[22]

Gen. et sp. nov

Valid

Adams

Early Cretaceous (late Aptian)

Twin Mountains Formation

United States

A neosuchian crocodyliform. The type species is Paluxysuchus newmani.

Stenomyti[23]

Gen. et sp. nov

Valid

Small & Martz

Late Triassic

Chinle Formation

United States

An aetosaur. The type species is Stenomyti huangae.

Torvoneustes coryphaeus[24]

Sp. nov

Valid

Young et al.

Late Jurassic (Kimmeridgian)

Kimmeridge Clay Formation

United Kingdom

A metriorhynchid, a species of Torvoneustes.

Tyrannoneustes[25]

Gen. et sp. nov

Valid[26]

Young et al.

Middle Jurassic

Oxford Clay Formation

United Kingdom

A metriorhynchid. The type species is Tyrannoneustes lythrodectikos.

Newly named basal dinosauromorphs

Name Novelty Status Authors Age Unit Location Notes Images

Ignotosaurus[27]

Gen. et sp. nov

Valid

Martínez et al.

Late Triassic (late Carnian)

Ischigualasto Formation

Argentina

A silesaurid. The type species is Ignotosaurus fragilis.

Lutungutali[28]

Gen. et sp. nov

Valid

Peecook et al.

Middle Triassic (Anisian)

Ntawere Formation

Zambia

A silesaurid. The type species is Lutungutali sitwensis.

Non-avian dinosaurs

Research

  • A new Troodontid Tooth is reported from Kallamedu Formation of India.[29]
  • A study on the reproductive strategies of dinosaurs is published by Werner & Griebeler (2013).[30]
  • A re-analysis of prior studies on the dinosaur growth rates is published by Myhrvold (2013).[31]
  • A study on an assemblage of specimens of Aniksosaurus darwini from the Upper Cretaceous Bajo Barreal Formation (Argentina) evaluating whether the assemblage is truly monospecific and whether or not all the individuals died at the same time based on taphonomic data, is published by Ibiricu et al. (2013).[32]
  • Redescription of Lusotitan atalaiensis and a study on the phylogenetic relationships of basal titanosauriform sauropods is published by Mannion et al. (2013).[33]
  • A review of all fossil specimens referred to Euoplocephalus tutus, as well as specimens that were previously referred to Euoplocephalus but subsequently were assigned to different genera, is published by Arbour & Currie (2013).[34]

New taxa

Name Novelty Status Authors Age Unit Location Notes Images

Acheroraptor[35]

Gen. et sp. nov

Valid

Evans, Larson & Currie

Late Cretaceous (latest Maastrichtian)

Hell Creek Formation

United States

A dromaeosaurid. The type species is Acheroraptor temertyorum.

Acrotholus[36]

Gen. et sp. nov

Valid

Evans et al.

Late Cretaceous (Santonian)

Canada

A pachycephalosaurid. The type species is Acrotholus audeti.

Ajancingenia[37]

Nom. nov

Valid

Easter

Late Cretaceous

Mongolia

A member of Oviraptoridae; a replacement name for Ingenia Barsbold (1981). Funston et al. (2018) considered this genus to be a junior synonym of the genus Heyuannia.[38]

Albertadromeus[39]

Gen. et sp. nov

Valid

Brown et al.

Late Cretaceous (Campanian)

Oldman Formation

Canada

A relative of Orodromeus, Oryctodromeus and Zephyrosaurus. The type species is Albertadromeus syntarsus.

Aorun[40]

Gen. et sp. nov

Valid

Choiniere et al.

Middle or Late Jurassic (Callovian/Oxfordian boundary, more likely Callovian)

Shishugou Formation

China

A coelurosaur theropod, more closely related to ornithomimosaurs and maniraptorans than to tyrannosauroids. The type species is Aorun zhaoi.

Aurornis[41]

Gen. et sp. nov

Valid

Godefroit et al.

Middle or Late Jurassic

Tiaojishan Formation

China

A basal member of Avialae[41] or a troodontid.[42] The type species is Aurornis xui.

Brasilotitan[43]

Gen. et sp. nov.

Valid

Machado et al.

Late Cretaceous

Adamantina Formation

Brazil

A titanosaur. The type species is Brasilotitan nemophagus.

Bravoceratops[44]

Gen. et sp. nov

Valid

Wick & Lehman

Late Cretaceous (early Maastrichtian)

Javelina Formation

United States

A chasmosaurine ceratopsian. The type species is Bravoceratops polyphemus.

Canardia[45]

Gen. et sp. nov

Valid

Prieto-Márquez et al.

Late Cretaceous (late Maastrichtian)

Marnes d'Auzas Formation

France

A lambeosaurine hadrosaurid related to Aralosaurus. The type species is Canardia garonnensis.

Dahalokely[46]

Gen. et sp. nov

Valid

Farke & Sertich

Late Cretaceous (Turonian)

Madagascar

An abelisauroid theropod. The type species is Dahalokely tokana.

Dongyangopelta[47]

Gen. et sp. nov

Valid

Chen et al.

Cretaceous (Albian or Cenomanian)

Chaochuan Formation

China

A nodosaurid. The type species is Dongyangopelta yangyanensis.

Eosinopteryx[48]

Gen. et sp. nov

Valid

Godefroit et al.

Middle or Late Jurassic

Tiaojishan Formation

China

A member of Paraves. The type species is Eosinopteryx brevipenna.

Europelta[49]

Gen. et sp. nov

Valid

Kirkland et al.

Early Cretaceous (early Albian)

Escucha Formation

Spain

A nodosaurid. The type species is Europelta carbonensis.

Gannansaurus[50]

Gen. et sp. nov

Valid

et al.

Late Cretaceous

Nanxiong Formation

China

A sauropod, a member of Somphospondyli. The type species is Gannansaurus sinensis.

Ganzhousaurus[51]

Gen. et sp. nov

Valid

Wang et al.

Late Cretaceous

Nanxiong Formation

China

An oviraptorid. The type species is Ganzhousaurus nankangensis.

Jianchangosaurus[52]

Gen. et sp. nov

Valid

Pu et al.

Early Cretaceous

Yixian Formation

China

A therizinosaur. The type species is Jianchangosaurus yixianensis.

Jiangxisaurus[53]

Gen. et sp. nov

Valid

Wei et al.

Late Cretaceous

Nanxiong Formation

China

An oviraptorid theropod. The type species is Jiangxisaurus ganzhouensis.

Judiceratops[54]

Gen. et sp. nov

Valid

Longrich

Late Cretaceous (middle Campanian)

Judith River Formation

United States

A chasmosaurine ceratopsian. The type species is Judiceratops tigris.

Juratyrant[55]

Gen. et comb. nov

Valid

Brusatte & Benson

Late Jurassic (Tithonian)

Kimmeridge Clay

United Kingdom

A basal tyrannosauroid, a new genus for "Stokesosaurus" langhami (Benson, 2008).

Katepensaurus[56]

Gen. et sp. nov

Valid

Ibiricu et al.

Late Cretaceous (Cenomanian or Turonian)

Bajo Barreal Formation

Argentina

A rebbachisaurid sauropod. The type species is Katepensaurus goicoecheai.

Kazaklambia[57]

Gen. et comb. nov

Valid

Bell & Brink

Late Cretaceous (Santonian)

Kazakhstan

A lambeosaurine hadrosaurid, a new genus for "Procheneosaurus" convincens.

Leptorhynchos[58]

Gen. et sp. nov

Valid

Longrich et al.

Late Cretaceous (late Campanian)

Aguja Formation

United States

A caenagnathid oviraptorosaur. The type species is Leptorhynchos gaddisi.[59] Originally genus also contained "Ornithomimus" elegans Parks (1933),[58] but this species was subsequently transferred to the separate genus Citipes.[60]

Lythronax[61]

Gen. et sp. nov

Valid

Loewen et al.

Late Cretaceous (middle Campanian)

Wahweap Formation

United States

A tyrannosaurine tyrannosaurid. The type species is Lythronax argestes.

Nankangia[62]

Gen. et sp. nov

Valid

et al.

Late Cretaceous

Nanxiong Formation

China

An oviraptorosaur. The type species is Nankangia jiangxiensis.

Nasutoceratops[63]

Gen. et sp. nov.

Valid

Sampson et al.

Late Cretaceous (late Campanian)

Kaiparowits Formation

United States

A centrosaurine ceratopsian. The type species is Nasutoceratops titusi.

Normanniasaurus[64]

Gen. et sp. nov

Valid

Le Loeuff, Suteethorn & Buffetaut

Early Cretaceous (Albian)

France

A basal member of Titanosauria. The type species is Normanniasaurus genceyi.

Nyasasaurus[65]

Gen. et sp. nov

Valid

Nesbitt et al.

Middle Triassic (late Anisian)

Manda Formation

Tanzania

The oldest known dinosaur or the sister taxon of the Dinosauria. The type species is Nyasasaurus parringtoni.

Oohkotokia[66]

Gen. et sp. nov

Valid

Penkalski

Late Cretaceous (late Campanian)

Two Medicine Formation

United States

An ankylosaurine ankylosaurid. The type species is Oohkotokia horneri. The species was subsequently argued by Arbour and Currie (2013) to be a junior synonym of Scolosaurus cutleri.[34]

Overosaurus[67]

Gen. et sp. nov

Valid

Coria et al.

Late Cretaceous (Campanian)

Anacleto Formation

Argentina

A lithostrotian titanosaur related to Aeolosaurus. The type species is Overosaurus paradasorum.

Saurolophus morrisi[68]

Sp. nov

Valid

Prieto-Márquez & Wagner

Late Cretaceous (Maastrichtian)

Moreno Formation

USA

Originally described as a species of Saurolophus; subsequently made the type species of a separate genus Augustynolophus by Prieto-Márquez et al. (2015).[69]

Sauroniops[70]

Gen. et sp. nov

Valid

Cau, Dalla Vecchia & Fabbri

Cenomanian

Kem Kem Beds

Morocco

A carcharodontosaurid. The type species is Sauroniops pachytholus. Announced in 2012; the final version of the article naming it was published in 2013.

Siats[71]

Gen. et sp. nov

Valid

Zanno & Makovicky

Late Cretaceous (Cenomanian)

Cedar Mountain Formation

United States

A Neovenatorid theropod. The type species is Siats meekerorum.

Taohelong[72]

Gen. et sp. nov

Valid

Yang et al.

Early Cretaceous

Hekou Group

China

A member of Polacanthinae. The type species is Taohelong jinchengensis

Tataouinea[73]

Gen. et sp. nov.

Valid

Fanti et al.

Early Cretaceous

Ain el Guettar Formation

Tunisia

A rebbachisaurid sauropod. The type species is Tataouinea hannibalis.

Trinisaura[74]

Gen. et sp. nov

Valid

Coria et al.

Late Cretaceous (Campanian)

Snow Hill Island Formation

Antarctica

An ornithopod dinosaur. The type species is Trinisaura santamartaensis.

Wulatelong[75]

Gen. et sp. nov

Valid

Xu et al.

Late Cretaceous (Campanian)

Wulansuhai Formation

China

An oviraptorid. The type species is Wulatelong gobiensis.

Xinjiangtitan[76]

Gen. et sp. nov

Valid

Wu et al.

Middle Jurassic

Qigu Formation

China

A sauropod related to Mamenchisaurus. The type species is Xinjiangtitan shanshanesis.

Yulong[77]

Gen. et sp. nov

Valid

et al.

Late Cretaceous

Qiupa Formation

China

An oviraptorid theropod dinosaur. The type species is Yulong mini.

Yunganglong[78]

Gen. et sp. nov

Valid

Wang et al.

Early Late Cretaceous

Zhumapu Formation

China

A basal member of Hadrosauroidea. The type species is Yunganglong datongensis.

Yunmenglong[79]

Gen. et sp. nov

Valid

et al.

Early Cretaceous

Haoling Formation

China

A titanosauriform sauropod. The type species is Yunmenglong ruyangensis.

Birds

Newly named pterosaurs

References

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