2025 in archosaur paleontology

Last updated

New taxa of fossil archosaurs of every kind were described during the year 2025 (or scheduled to), and other studies related to the paleontology of archosaurs were published that year.

Contents

Pseudosuchians

New pseudosuchian taxa

NameNoveltyStatusAuthorsAgeType localityLocationNotesImage

Crocodylus sudani [1]

Sp. nov

Valid

Salih et al.

Late Pleistocene

Atbara River

Flag of Sudan.svg Sudan

A crocodile, a species of Crocodylus .

Crocodylus sudani lateral view.webp

Ibirasuchus [2]

Gen. et sp. nov

Valid

Iori et al.

Late Cretaceous

São José do Rio Preto Formation

Flag of Brazil.svg Brazil

An itasuchid peirosaurian. The type species is I. gelcae.

Kostensuchus [3]

Gen. et sp. nov

Valid

Novas et al.

Late Cretaceous (Maastrichtian)

Chorrillo Formation

Flag of Argentina.svg Argentina

A peirosaurid. The type species is K. atrox.

Kostensuchus holotype skeletal size comparison.png

Kuttysuchus [4]

Gen. et sp. nov

Valid

Haldar, Ray & Bandyopadhyay

Late Triassic

Lower Dharmaram Formation

Flag of India.svg India

An aetosaur belonging to the tribe Paratypothoracini. The type species is K. minori.

Pattisaura [5]

Gen. et sp. nov

Valid

Wu et al.

Late Triassic

Cooper Canyon Formation

Flag of the United States.svg United States
(Flag of Texas.svg Texas)

An early member of Crocodylomorpha. The type species is P. gracilis.

Pattisaura gracilis.jpg

Piscogavialis laberintoensis [6]

Sp. nov

Zamora-Vega et al.

Miocene

Pisco Formation

Flag of Peru.svg Peru

A gavialid.

Pseudogavialis [7]

Gen. et comb. nov

Valid

Courville et al.

OligoceneMiocene

Lower Siwalik

Flag of Pakistan.svg Pakistan

A member of Gavialoidea. The type species is "Gharialis" curvirostris Lydekker (1886).

Pseudogavialis holotype.jpg

Sissokosuchus [8]

Gen. et sp. nov

Wilberg et al.

Early Cretaceous

Continental intercalaire

Flag of Mali.svg Mali

An itasuchid peirosaurian. The type species is S. maliensis.

Tewkensuchus [9]

Gen. et sp. nov

Valid

Bravo et al.

Early Paleocene

Salamanca Formation

Flag of Argentina.svg Argentina

A sebecosuchian. The type species is T. salamanquensis

Tewkensuchus holotype.jpg

Thilastikosuchus [10]

Gen. et sp. nov

Valid

Carvalho et al.

Early Cretaceous

Quiricó Formation

Flag of Brazil.svg Brazil

A notosuchian. The type species is T. scutorectangularis.

General pseudosuchian research

Aetosaur research

Crocodylomorph research

Non-avian dinosaurs

New dinosaur taxa

NameNoveltyStatusAuthorsAgeType localityCountryNotesImages

Ahvaytum [47]

Gen. et sp. nov

Lovelace et al.

Late Triassic (Carnian)

Popo Agie Formation

Flag of the United States.svg United States
(Flag of Wyoming.svg Wyoming)

An early saurischian, possibly a basal sauropodomorph. The type species is A. bahndooiveche.

Ahvaytum bahndooiveche.png

Archaeocursor [48]

Gen. et sp. nov

Valid

Yao et al.

Early Jurassic (SinemurianPliensbachian)

Ziliujing Formation

Flag of the People's Republic of China.svg China

A basal ornithischian. The type species is A. asiaticus. Announced in 2024; the final article version was published in 2025.

Archaeocursor asiaticus.png

Astigmasaura [49]

Gen. et sp. nov

Valid

Bellardini et al.

Late Cretaceous (Cenomanian)

Huincul Formation

Flag of Argentina.svg Argentina

A rebbachisaurid sauropod. The type species is A. genuflexa.

Astigmasaura genuflexa.png

Chadititan [50]

Gen. et sp. nov

Valid

Agnolín et al.

Late Cretaceous (Campanian)

Anacleto Formation

Flag of Argentina.svg Argentina

A rinconsaurian titanosaur. The type species is C. calvoi.

Chadititan calvoi.png

Cienciargentina [51]

Gen. et sp. nov

Valid

Simón & Salgado

Late Cretaceous (Cenomanian-Turonian)

Huincul Formation

Flag of Argentina.svg Argentina

A rebbachisaurid sauropod. The type species is C. sanchezi.

Cienciargentina sanchezi.png

Duonychus [52]

Gen. et sp. nov

Valid

Kobayashi et al.

Late Cretaceous (CenomanianConiacian)

Bayanshiree Formation

Flag of Mongolia.svg Mongolia

A therizinosaurid theropod. The type species is D. tsogtbaatari.

Duonychus tsogtbaatari.png

Dzharacursor [53]

Gen. et comb. nov

Valid

Averianov & Sues

Late Cretaceous (Turonian)

Bissekty Formation

Flag of Uzbekistan.svg Uzbekistan

An ornithomimid theropod. The type species is "Archaeornithomimus" bissektensis Nesov (1995).

Dzharacursor bissektensis.png

Emiliasaura [54]

Gen. et sp. nov

Valid

Coria et al.

Early Cretaceous (Valanginian)

Mulichinco Formation

Flag of Argentina.svg Argentina

An ornithopod belonging to the group Rhabdodontomorpha. The type species is E. alessandrii. Announced in 2024; the final article version was published in 2025.

Emiliasaura alessandrii.png

Enigmacursor [55]

Gen. et sp. nov

Valid

Maidment & Barrett

Late Jurassic (KimmeridgianTithonian)

Morrison Formation

Flag of the United States.svg United States
(Flag of Colorado.svg Colorado)

A non-cerapodan neornithischian. The type species is E. mollyborthwickae.

Enigmacursor mollyborthwickae.png
Huadanosaurus [56]

Gen. et sp. nov

Valid

Qiu et al.

Early Cretaceous (Barremian)

Yixian Formation

Flag of the People's Republic of China.svg China

A compsognathid-like theropod belonging to the group Sinosauropterygidae. The type species is H. sinensis.

Huadanosaurus sinensis.png

Huashanosaurus [57]

Gen. et sp. nov

Valid

Mo et al.

EarlyMiddle Jurassic

Wangmen Formation

Flag of the People's Republic of China.svg China

A basal eusauropodan sauropod. The type species is H. qini.

Huashanosaurus qini.png
Istiorachis [58] Gen. et sp. novValidLockwood, Martill, & MaidmentEarly Cretaceous (Barremian) Wessex Formation Flag of the United Kingdom.svg United Kingdom A styracosternan ornithopod. The type species is I. macarthurae. Istiorachis macarthurae.png

Jinchuanloong [59]

Gen. et sp. nov

Valid

Li et al.

Middle Jurassic (Bathonian)

Xinhe Formation

Flag of the People's Republic of China.svg China

A basal eusauropodan sauropod. The type species is J. niedu.

Jinchuanloong niedu.png

Khankhuuluu [60]

Gen. et sp. nov

Valid

Voris et al.

Late Cretaceous (TuronianSantonian)

Bayanshiree Formation

Flag of Mongolia.svg Mongolia

A tyrannosauroid theropod. The type species is K. mongoliensis.

Khankhuuluu mongoliensis.png

Maleriraptor [61]

Gen. et sp. nov

Valid

Ezcurra et al.

Late Triassic (Norian)

Upper Maleri Formation

Flag of India.svg India

A herrerasaurian saurischian. The type species is M. kuttyi.

Maleriraptor kuttyi.png

Mexidracon [62]

Gen. et sp. nov

Valid

Serrano-Brañas et al.

Late Cretaceous (Campanian)

Cerro del Pueblo Formation

Flag of Mexico.svg Mexico

An ornithomimid theropod. The type species is M. longimanus.

Mexidracon longimanus.png

Obelignathus [63]

Gen. et comb. nov

Valid

Czepiński & Madzia

Late Cretaceous (Campanian-Maastrichtian)

Argiles et Grès à Reptiles Formation

Flag of France.svg France

An ornithopod belonging to the group Rhabdodontomorpha. The type species is "Rhabdodon" septimanicus Buffetaut & Le Loeuff (1991).

Obelignathus septimanicus.png

Petrustitan [64]

Gen. et comb. nov

Valid

Díez Díaz et al.

Late Cretaceous (Maastrichtian)

Sînpetru Formation

Flag of Romania.svg Romania

A titanosaur sauropod. The type species is "Magyarosaurus" hungaricus Huene (1932).

Petrustitan hungaricus.png

Pulaosaurus [65]

Gen. et sp. nov

Valid

Yang, King & Xu

Jurassic (Callovian-Oxfordian)

Tiaojishan Formation

Flag of the People's Republic of China.svg China

An early-diverging neornithischian. The type species is P. qinglong.

Pulaosaurus qinglong.png

Qianjiangsaurus [66]

Gen. et sp. nov

Valid

Dai et al.

Late Cretaceous

Zhengyang Formation

Flag of the People's Republic of China.svg China

An early-diverging hadrosauromorph. The type species is Q. changshengi. Announced in 2024; the final article version was published in 2025.

Qianjiangsaurus changshengi.png

Shri rapax [67]

Sp. nov

Valid

Moutrille et al.

Late Cretaceous

Djadochta Formation

Flag of Mongolia.svg Mongolia

A dromaeosaurid theropod; a species of Shri .

Shri rapax.png

Sinosauropteryx lingyuanensis [56]

Sp. nov

Valid

Qiu et al.

Early Cretaceous (Barremian)

Yixian Formation

Flag of the People's Republic of China.svg China

A compsognathid-like theropod; a species of Sinosauropteryx .

Sinosauropteryx lingyuanensis.png

Taleta [68]

Gen. et sp. nov

Valid

Longrich et al.

Late Cretaceous (Maastrichtian)

Ouled Abdoun Basin

Flag of Morocco.svg Morocco

A lambeosaurine hadrosaurid belonging to the tribe Arenysaurini. The type species is T. taleta.

Taleta taleta.png

Tameryraptor [69]

Gen. et sp. nov

Valid

Kellermann, Cuesta & Rauhut

Late Cretaceous (Cenomanian)

Bahariya Formation

Flag of Egypt.svg Egypt

A carcharodontosaurid theropod. The type species is T. markgrafi.

Tameryraptor markgrafi.png

Tongnanlong [70]

Gen. et sp. nov

Valid

Wei et al.

Late Jurassic

Suining Formation

Flag of the People's Republic of China.svg China

A mamenchisaurid sauropod. The type species is T. zhimingi.

Tongnanlong zhimingi.png

Uriash [64]

Gen. et sp. nov

Valid

Díez Díaz et al.

Late Cretaceous (Maastrichtian)

Densuș-Ciula Formation

Flag of Romania.svg Romania

A titanosaur sauropod. The type species is U. kadici.

Uriash kadici.png

Wudingloong [71]

Gen. et sp. nov

Valid

Wang et al.

Early Jurassic (Hettangian to Sinemurian)

Yubacun Formation

Flag of the People's Republic of China.svg China

A massopodan sauropodomorph. The type species is W. wui.

Wudingloong wui.png

Xingxiulong yueorum [72]

Sp. nov

Chen et al.

Early Jurassic

Lufeng Formation

Flag of the People's Republic of China.svg China

A massopodan sauropodomorph; a species of Xingxiulong .

Xingxiulong yueorum.png

Yuanmouraptor [73]

Gen. et sp. nov

Valid

Zou et al.

Middle Jurassic

Zhanghe Formation

Flag of the People's Republic of China.svg China

A metriacanthosaurid theropod. The type species is Y. jinshajiangensis.

Yuanmouraptor jinshajiangensis.png

Yuanyanglong [74]

Gen. et sp. nov

Valid

Hao et al.

Early Cretaceous

Miaogou Formation

Flag of the People's Republic of China.svg China

An oviraptorosaurian theropod. The type species is Y. bainian. Announced in 2024; the final article version was published in 2025.

Yuanyanglong bainian.png

Zhongyuansaurus junchangi [75]

Sp. nov

Valid

Zhang et al.

Early Cretaceous

Haoling Formation

Flag of the People's Republic of China.svg China

An ankylosaurid; a species of Zhongyuansaurus .

Zhongyuansaurus junchangi.png

General non-avian dinosaur research

Saurischian research

Theropod research

  • A study on the shape and growth of snouts and beaks of extinct theropods and extant birds, providing evidence of a conserved growth pattern of the rostrum throughout the evolutionary history of theropods, is published by Garland et al. (2025). [107]
  • Marques et al. (2025) compare the performance of different machine learning models used for identification of isolated theropod teeth. [108]
  • Theropod tracks assigned to three co-occurring ichnotaxa are described from the Lower Jurassic strata of the Peyre site (Causses Basin, France) by Moreau, Sciau & Jean (2025). [109]
  • Piñuela et al. (2025) report the discovery of a theropod footprint preserved with a detached sandstone undertrack from the Upper Jurassic Lastres Formation (Spain), providing evidence of foot movement through the sediment and evidence of changes of footprint morphology at different levels of sediment depth, with some of the successive footprint outlines showing similarities to footprints of members of different dinosaur groups; the authors also reevaluate the type series of the ichnotaxon Iguanodontipus , and argue that some of the studied footprints might have been produced by a theropod. [110]
  • Buntin et al. (2025) report the discovery of new mating display scrapes of theropods from the Cenomanian strata of the Dakota Sandstone at Dinosaur Ridge (Colorado, United States), and interpret the site preserving the studied traces as likely to be a lek site. [111]
  • Evidence from the study of theropod tracks from the Maastrichtian strata from the Torotoro National Park (Bolivia), indicating that the formation of tail traces associated with the studied trackways was related to walking kinematics of theropods in soft substrate, is presented by McLarty et al. (2025). [112]
  • Indeterminate theropod phalanges with similarities to phalanges of digging mammals are described from the Turonian Bissekty Formation (Uzbekistan) by Averianov (2025). [113]
  • Ősi, Kolláti & Nagy (2025) report evidence of greater diversity of teeth of Late Cretaceous theropods from Central Europe than recognized in earlier studies, and interpret the studied teeth of large tetanurans as indicative of feeding patterns similar to those of the Komodo dragon. [114]
  • A new theropod specimen, likely distinct from Sinosaurus triassicus and Shuangbaisaurus anlongbaoensis and related to averostrans, is described from the Lower Jurassic Lufeng Formation (China) by Li et al. (2025). [115]
  • Cau & Paterna (2025) describe new theropod fossil material from the Kem Kem Group (Morocco) and revise Bahariasaurus and Deltadromeus, interpreting the former taxon as an abelisauroid showing convergences with the ornithomimosaurs and a senior synonym of the latter taxon; the authors also confirm that the fossil material originally attributed to Kryptops palaios includes both abelisaurid and allosauroid remains, and argue that the fossil material originally attributed to Eocarcharia dinops includes both spinosaurid and allosauroid remains. [116]
  • Rocha et al. (2025) describe a isolated abelisauroid teeth from the Cenomanian Açu Formation (Brazil), including a probable noasaurid tooth representing the first record of the group from the Potiguar Basin. [117]
  • Evidence from the study of a new dentary of Berthasaura leopoldinae , indicating that this theropod lost its teeth during its ontogeny, is presented by Pierossi et al. (2025). [118]
  • A study on bone histology of Ceratosaurus , providing evidence of faster growth rate than in Late Cretaceous members of Ceratosauria, is published by Sombathy, O'Connor & D'Emic (2025). [119]
  • A study on the body size evolution in Ceratosauria, providing evidence of a trend towards decreased body size in noasaurids and of constraints on the increase of body size in abelisaurids, is published by Seculi Pereyra, Pérez & Méndez (2025). [120]
  • Ribeiro et al. (2025) study the affinities of isolated theropod teeth from the Cretaceous Açu Formation (Brazil), reporting the first noasaurid record for the studied formation and identifying four morphotypes of abelisaurid teeth, interpreted as possible evidence of predominance of abelisaurids in the theropod assemblage found in the studied formation. [121]
  • A study on the maxillary shape of abelisaurids and its relation to feeding ecology is published by Seculi Pereyra et al. (2025), who find evidence of morphological similarities between the maxillae of Spectrovenator and Late Cretaceous abelisaurids, interpreted as likely to be specialist hunters holding and killing prey with their jaws. [122]
  • Redescription of the anatomy of the appendicular skeleton of Piatnitzkysaurus floresi and a study on the phylogenetic affinities of this species is published by Pradelli, Pol & Ezcurra (2025). [123]
  • Theropod teeth identified as belonging to members of the groups Spinosauridae, Metriacanthosauridae, Allosauria and Tyrannosauroidea are described from the Upper Jurassic to Lower Cretaceous Khorat Group (Thailand) by Chowchuvech et al. (2025), who interpret the studied teeth as suggestive of a theropod faunal turnover during the Early Cretaceous. [124]
  • Isasmendi et al. (2025) describe new fossil material of early-branching tetanurans and baryonychine spinosaurids from the Lower Cretaceous Golmayo Formation (Spain), including a large-bodied baryonychine from the Zorralbo I locality. [125]
  • Puntanon & Samathi (2025) review the Cretaceous fossil record of spinosaurids from Asia. [126]
  • Puntanon, Suteethorn & Samathi (2025) describe spinosaurid teeth from Hin Lat Yao locality (Sao Khua Formation, Thailand), tentatively identified as belonging to a taxon distinct from Siamosaurus . [127]
  • Evidence indicating that oxygen isotope composition in tooth dentine of Spinosaurus aegyptiacus can be used as a proxy for environmental reconstructions is presented by Liu et al. (2025), who record oxygen isotope variability in the dentine of the studied theropod, interpreted as likely reflecting seasonal environmental changes. [128]
  • Description of new fossil material of Allosaurus from the Andrés fossil site (Portugal) and a taxonomic revision of this genus is published by Malafaia et al. (2025), who interpret A. fragilis and A. jimmadseni as the only valid species of Allosaurus from the Late Jurassic of North America, and consider the holotype of Allosaurus europaeus to be a specimen of A. fragilis. [129]
  • Kotevski et al. (2025) describe new fossil material of theropods from the Lower Cretaceous Strzelecki Group and Eumeralla Formation (Australia), including the first carcharodontosaurian fossils from Australia, bones of large-bodied megaraptorids and a tibia of a member of Unenlagiinae. [130]
  • Oswald et al. (2025) revise purported teeth of Acrocanthosaurus from the Sonorasaurus Quarry in the Turney Ranch Formation of Arizona and the Long Walk Quarry in the Ruby Ranch Member of the Cedar Mountain Formation (Utah), describe additional allosauroid teeth from three localities in the Yellow Cat Member of the Cedar Mountain Formation, and interpret the studied fossils as possible evidence of presence of fossil material of up to four carcharodontosaurid taxa in the Cedar Mountain Formation. [131]
  • Averianov et al. (2025) describe a maxilla of a member of the genus Ulughbegsaurus from the Cenomanian Khodzhakul Formation (Uzbekistan), and interpret its morphology as supporting the attribution of Ulughbegsaurus to the family Carcharodontosauridae. [132]
  • A tooth of a carcharodontosaurid related to Giganotosaurus and Mapusaurus is described from the Lower Cretaceous strata of the Itapecuru Formation (Brazil) by França et al. (2025). [133]
  • Calvo et al. (2025) report the first discovery of the humerus of an adult specimen of Megaraptor namunhuaiquii from the Upper Cretaceous Portezuelo Formation (Argentina), and interpret its anatomy as indicating that M. namunhuaiquii and Gualicho shinyae were not closely related. [134]
  • A study on the biogeography of Megaraptora and Tyrannosauroidea is published by Morrison et al. (2025), who argue that megaraptorans had a cosmopolitan distribution before the splitting of Laurasia and Gondwana, that gigantism evolved multiple times in tyrannosauroids and its evolution might have been related to cooling climate, and that direct ancestors of Tyrannosaurus likely migrated into North America from Asia. [135]
  • A study on the evolution of adaptations to cursoriality in the hindlimbs of theropod dinosaurs and on the origin of arctometatarsus in members of Coelurosauria is published by Kubo & Kobayashi (2025) [136]
  • Romilio & Xing (2025) study a nearly 70-metres-long theropod trackway (possibly produced by Yutyrannus ) from the Cretaceous Jiaguan Formation (China), and present a reconstruction of the locomotion of the trackmaker. [137]
  • Voris et al. (2025) study changes of the endocranial morphology of Gorgosaurus libratus during its ontogeny, and report that endocasts of juvenile Gorgosaurus show better defined details of the brain morphology compared to mature specimens. [138]
  • Scherer (2025) reeavulates evidence for anagenesis in tyrannosaurine tyrannosaurids, and recovers species belonging to the genus Daspletosaurus as forming an evolutionary grade within Tyrannosaurinae, but does not recover Daspletosaurus as a direct ancestor of Tyrannosaurini. [139]
  • Warner-Cowgill et al. (2025) describe a new specimen of Daspletosaurus from the Judith River Formation (Montana, United States), report evidence of the presence of a combination of anatomical features unknown in other members of the genus, and interpret the anatomy of the specimen as weakening the case that D. wilsoni and D. torosus are distinct species. [140]
  • Coppock et al. (2025) identify the Daspletosaurus specimen CMN 350 from the Dinosaur Park Formation as the first specimen of Daspletosaurus horneri from Alberta (Canada), and study variability of skull characteristics in members of this species. [141]
  • Mitchell et al. (2025) analyze vessel-like structures within the fractured rib of the RSKM P2523.8 specimen of Tyrannosaurus rex, interpreted as angiogenic blood vessel casts, and interpret their preservation as aided by incomplete healing of the rib fracture. [142]
  • Paul (2025) revises tyrannosaurid fossil material from the Maastrichtian formations of the North American upper plains, and argues that multiple tyrannosaurid species were present in North America during the Latest Cretaceous. [143]
  • Carr (2025) studies the impact of the commercial trade on the sample size of specimens of Tyrannosaurus rex , finds that the rate of discoveries of fossils of T. rex made by commercial companies is higher than that of public trusts, but also reports that commercially collected T. rex fossils mostly remain in private collections or stockrooms, and that there are more fossils of T. rex in private hands than in public trusts. [144]
  • Carr (2025) restudies the holotype skull of Tyrannosaurus rex. [145]
  • Rowe & Rayfield (2025) compare cranial biomechanics of members of different groups of large-bodied theropods, find evidence of elevated cranial stress in tyrannosaurids related to increased head muscle volume and bite forces, unlike other theropods that experienced lower cranial stress, and interpret these differences as likely related to different feeding strategies of tyrannosaurids and other large theropods. [146]
  • Meso et al. (2025) revise alvarezsaurid fossils from the Salitral Ojo de Agua locality (Allen Formation; Río Negro Province, Argentina) described by Salgado et al. (2009) [147] and an alvarezsaurid femur from the same locality originally described as an ornithopod femur by Coria, Cambiaso & Salgado (2007), [148] describe additional alvarezsaurid material from this locality, and interpret the studied fossils as likely bones of Bonapartenykus ultimus , providing new information on the body plan of members of Patagonykinae. [149]
  • A study on pneumatic structures in the vertebrae of cf. Bonapartenykus ultimus from the Allen Formation is published by Windholz et al. (2025). [150]
  • The conclusions of the study on the hearing acuity of Shuvuuia deserti published by Choiniere et al. (2021) [151] are contested by Manley & Köppl (2025). [152]
  • Evidence of carnivory in the holotype of Bannykus is presented by Wang et al. (2025). [153]
  • Evidence from the study of limb morphology of non-avian maniraptorans and birds, interpreted as indicating that evolution of maniraptoran limbs was not solely driven by functional specialization for flight, is presented by Nebreda, Hernández Fernández & Marugán-Lobón (2025). [154]
  • Smith (2025) reconstructs the musculature of the pectoral girdle and forelimbs of Falcarius utahensis . [155]
  • Napoli et al. (2025) report evidence of presence of a pisiform in two newly prepared pennaraptoran specimens from the Upper Cretaceous strata from the Gobi Desert in Mongolia ( Citipati cf. osmolskae and a troodontid), providing evidence of replacement of the ulnare by the pisiform before the origin of birds, and close to the origins of flight in theropods. [156]
  • Evidence indicating that digit loss and reduction of the rest of the forelimb in members of Oviraptorosauria were independent changes resulting from different evolutionary processes is presented by Mead, Funston & Brusatte (2025). [157]
  • Zhu et al. (2025) report the discovery of clutch of elongatoolithid eggs from the Upper Cretaceous Qiupa Formation (China), possibly produced by Yulong mini . [158]
  • Wang et al. (2025) report the discovery of elongatoolithid eggs from the Upper Cretaceous Zhangqiao Formation (Anhui, China), representing the first record of non-avian dinosaur eggs in the Hefei Basin. [159]
  • Foster, Norell & Balanoff (2025) describe two new specimens of Conchoraptor gracilis from the Baruungoyot Formation (Mongolia), present an updated diagnosis for Conchoraptor and differentiate C. gracilis from both Heyuannia yanshini and Khaan mckennai . [160]
  • New information on the structure and number of hindwing feathers in Microraptor is presented by Chotard et al. (2025), who report the first evidence of asymmetry of long metatarsal covert feathers in Microraptor, and report evidence of a configuration of feather layers in the hindwing of the studied taxon. [161]
  • Grosmougin et al. (2025) reconstruct the anatomy of the forewing of Microraptor on the basis of data from the study of four known and ten new specimens. [162]
  • Didactyl tracks likely produced by unenlagiine dromaeosaurids, and preserving traces likely left by claw on digit II resting on the substrate, are described from the Candeleros Formation (Argentina) by Heredia et al. (2025). [163]
  • Motta et al. (2025) study the phylogenetic affinities of unenlagiines, recover them as early-diverging members of Avialae, and support the inclusion of all Gondwanan paravians in the group. [164]
  • Garros et al. (2025) study the histology of troodontid metatarsal bones from the Dinosaur Park Formation (Alberta, Canada), reporting evidence of pathologies in the studied fossil sample, and providing evidence of at least two different growth trajectories in the studied troodontids. [165]
  • Yun (2025) studies mandibular strength properties of troodontids, and interprets his findings as indicating that the anterior part of the snout might have been used for handling and grasping food items. [166]
  • Varricchio, Hogan & Gardner (2025) describe new troodontid material from the Two Medicine Formation (Montana, United States), and interpret Stenonychosaurus inequalis as a junior synonym of Troodon formosus . [167]
  • Evidence of similarities of fusion patterns of the axial column in Troodon formosus and extant emu is presented by Caldwell, Bedolla & Varricchio (2025). [168]
  • Evidence from the study of isolated theropod teeth from the Molí del Baró-1 locality (Catalonia, Spain), interpreted as indicative of previously unrecognized diversity of paravians from the Ibero-Armorican island during the latest Cretaceous and of diverse feeding styles of the studied theropods, is presented by Castillo-Visa et al. (2025). [169]

Sauropodomorph research

  • A study on the evolution of the morphology of the sauropodomorph astragalus, providing evidence of stepwise appearance of features seen in sauropods, is published by Lefebvre et al. (2025). [170]
  • Filek et al. (2025) calculate striking energy of the tail of Plateosaurus trossingensis , and argue that the tail of Plateosaurus could have been used for active defence. [171]
  • Description of a well-preserved specimen of Plateosaurus trossingensis from the Upper Triassic Klettgau Formation (Switzerland), preserving evidence of a pathology of its right scapula and humerus, is published by Dupuis et al. (2025), who diagnose the studied individual as likely affected by a chronic case of osteomyelitis. [172]
  • Lania, Pabst & Scheyer (2025) describe the skull of a probable new massopodan taxon from the Late Triassic Klettgau Formation (Switzerland). [173]
  • Peyre de Fabrègues et al. (2025) describe new fossil material of Leyesaurus marayensis from the Balde de Leyes Formation (Argentina) and revise the anatomy of the holotype specimen of this species, identifying the holotype as a likely juvenile specimen. [174]
  • Mooney et al. (2025) describe fossil material of Massospondylus from the Lower Jurassic strata of the upper Elliot Formation (South Africa and Lesotho) including embryos within eggs and a hatchling, providing new information on the ontogeny of Massospondylus, and interpret the studied fossils as indicating that Massospondylus was quadrupedal during its early ontogeny and shifted to bipedalism later in life. [175]
  • Probable sauropodomorph (possibly basal sauropod) tracks are described from a new tracksite from the Norian Shahmirzad Formation (Shemshak Group; Iran) by Abbassi, Gharehbaghi & Maleki (2025). [176]
  • Toefy, Krupandan & Chinsamy (2025) study the bone histology of two sauropodiform specimens and one early sauropod from the Elliot Formation (South Africa), providing evidence that the three studied specimens underwent rapid growth but differed in the duration of uninterrupted growth, and argue that the change of growth dynamics throughout the evolutionary history of sauropodomorphs was more complex than a simple progression from slow, interrupted growth to fast, uninterrupted growth. [177]
  • Partial skull of an early member of Sauropodiformes, with long, sauropod-like teeth, is described from the Lower Jurassic Lufeng Formation (China) by Sundgren et al. (2025). [178]
  • Evidence of differences in dentition of Early Jurassic sauropods from the Cañadón Asfalto Formation (Argentina), possibly indicative of different feeding strategies and niche partitioning between sauropods from this formation, is presented by Gomez (2025). [179]
  • Description of the anatomy of the appendicular skeleton of Bagualia alba is published by Gomez et al. (2025), who also study morphological diversity of sauropodomorphs throughout their evolutionary history, and report evidence of shifts in morphospace occupation during the Jurassic related to the diversification of early sauropods and extinction of other sauropodomorphs, as well as to subsequent diversification of Neosauropoda. [180]
  • Gomez et al. (2025) reconstruct the brain and inner ear of Bagualia alba, and interpret their anatomy as indicative of gradual sensory changes during sauropod evolution. [181]
  • Kaikaew, Suteethorn & Chinsamy (2025) describe a pathologic mamenchisaurid ulna from the Early Cretaceous Phu Kradung Formation (Thailand), and diagnose the studied specimen as affected by an osteogenic tumor. [182]
  • Saleiro & Tschopp (2025) describe a previously unstudied collection of sauropod teeth from the Upper Jurassic strata in Portugal, identified as belonging to members of Turiasauria, Flagellicaudata, Camarasauridae and Titanosauriformes. [183]
  • Winkler et al. (2025) study tooth wear in Late Jurassic sauropods from Portugal, Tanzania and United States, and interpret their findings as consistent with a narrow dietary niche of camarasaurids and likely with their seasonal migrations following the availability of their preferred food source, with niche differentiation between camarasaurids and turiasaurs in Portugal, with a broad dietary niche and seasonal variation in diet in diplodocoids (possibly linked to limited migration compared to camarasaurids), and with consumption of food including more abrasives (possibly stemming from a nearby desert) by titanosauriforms from Tanzania compared to the ones from Portugal. [184]
  • Sauropod teeth identified as the oldest turiasaurian fossils from Africa reported to date are described from the Middle Jurassic El Mers III Formation (Morocco) by Woodruff et al. (2025). [185]
  • Lee & Slowiak (2025) propose a methodology to determine the preferred walking speeds of sauropods, focused on Diplodocus , Brachiosaurus , and Argentinosaurus . [186]
  • Dinosaur tracks from the Kimmeridgian strata from the Villette tracksite (France), sharing similarities with tracks attributed to thyreophorans, are identified as more likely to be tracks of a small-bodied sauropod by Sciscio et al. (2025). [187]
  • Eiamlaor et al. (2025) study pneumatic structures of cervical vertebrae of Phuwiangosaurus and a diplodocoid from the Sao Khua Formation (Thailand), and propose that Phuwiangosaurus was a titanosauriform more closely related to brachiosaurids than to Somphospondyli. [188]
  • Review of history of studies on diplodocoid sauropods and of status of research on their phylogeny, morphology, ecology, ontogeny and biogeography is published by van der Linden et al. (2025). [189]
  • A revision of the known material assigned to the genus Haplocanthosaurus is published by Boisvert et al. (2025). [190]
  • A study on the morphology of teeth, their replacement process and possible feeding ecology of Bajadasaurus pronuspinax is published by Garderes (2025). [191]
  • Lerzo & Gallina (2025) redescribe the left ilium of Cathartesaura anaerobica , and interpret its anatomy as consistent with the invasion of the space within the ilium by parts of the abdominal air sac that provided resistance to the thin ilium. [192]
  • A study on the range of motion of the vertebral series in the tail of Giraffatitan brancai is published by Díez Díaz et al. (2025). [193]
  • Redescription of Liaoningotitan sinensis is published by Shan (2025). [194]
  • Large fusioolithid eggs with thin eggshells, produced by titanosaurs, are described from the Upper Cretaceous Villalba de la Sierra Formation (Spain) by Sanguino et al. (2025), who name a new ootaxon Litosoolithus poyosi . [195]
  • Titanosaur tracks preserving details of the skin and soft tissue anatomy, including evidence of variation in scale morphology on feet and evidence that unguals on digits I and II of feet were largely covered in skin, are described from the Cretaceous strata from the Nemegt locality in Mongolia by Bell et al. (2025). [196]
  • Poropat et al. (2025) identify gut contents of a specimen of Diamantinasaurus matildae from the Cretaceous Winton Formation (Australia), providing evidence of bulk feeding and multi-level browsing resulting in consumption of conifers, seed ferns and flowering plants by the studied sauropod. [197]
  • Fossil material of lithostrotian titanosaurs assigned to two morphotypes, including caudal vertebrae preserved with rare pathological features, is described from the Upper Cretaceous Cambambe Basin (Brazil) by Lacerda et al. (2025). [198]
  • A study on the histology of the caudal vertebrae of Rocasaurus muniozi is published by Fernández, Windholz & Zurriaguz (2025), who find fibres that might be histological correlates for skeletal pneumaticity to be present but uncommon in the studied bones. [199]
  • A study on the anatomy of the atlas and axis of Neuquensaurus australis is published by Zurriaguz et al. (2025). [200]
  • Kim et al. (2025) study sauropod eggs from the Lower Cretaceous Sihwa Formation (South Korea), and report evidence of sauropods laying eggs on high ground encircled by water-filled channels within a braided river system, protecting their nests with channels serving as natural moats but risking floodings. [201]
  • Sauropod bones affected by osteomyelitis and preserving evidence of distinct manifestations of bone remodeling are described from the Santonian strata from the Ibirá locality (São José do Rio Preto Formation, Bauru Group, Brazil) by Aureliano et al. (2025). [202]
  • Silva Junior et al. (2025) study the resistance of femora of Diplodocus sp., Amargasaurus cazaui, Giraffatitan brancai, Dreadnoughtus schrani, Uberabatitan ribeiroi, Australotitan cooperensis and Neuquensaurus australis to stresses endured while the sauropods assumed bipedal stance, and argue that smaller sauropods such as saltasaurids were able to sustain a bipedal stance for extended periods. [203]

Ornithischian research

Thyreophoran research

  • Sánchez-Fenollosa & Cobos (2025) describe a partial cranium and cervical vertebra referrable to Dacentrurus armatus from the Upper Jurassic Villar del Arzobispo Formation (Spain), representing the most complete stegosaurian skull from Europe reported to date, and provide a revised taxonomy and phylogenetic nomenclature of stegosaurs, naming a new clade Neostegosauria. [206]
  • Maidment et al. (2025) describe a new specimen of Spicomellus afer , confirming its ankylosaurian status and expanding on the anatomy of this genus. [207]
  • Rivera-Sylva et al. (2025) describe new fossil material of members of Ankylosauria from the Upper Cretaceous strata in Coahuila (Mexico), including fossils from the Maastrichtian Cañon del Tule Formation representing the youngest records of the group from Mexico reported to date. [208]
  • Álvarez Nogueira et al. (2025) report fragmentary remains of a possible parankylosaurian from the Allen Formation (Argentina), likely representing a taxon distinct from the coeval Patagopelta . [209]
  • Treiber et al. (2025) report the first discovery of fossil material of Struthiosaurus sp. from the Maastrichtian strata of the Haţeg Basin known as "Bărbat Formation" or "Pui Beds" (Romania), and review the ankylosaur fossil record from Transylvania. [210]
  • Arbour et al. (2025) describe tracks produced by ankylosaurids from the Cenomanian Kaskapau Formation and Dunvegan Formation (British Columbia and Alberta, Canada), interpreted as evidence of the presence of ankylosaurids in North America prior to the Campanian and their coexistence with non-ankylosaurid ankylosaurs during the mid-Cretaceous, and name a new ichnotaxon Ruopodosaurus clava . [211]

Cerapod research

  • Maidment et al. (2025) describe a fragmentary femur from the Middle Jurassic El Mers III Formation (Morocco) representing the oldest known fossil of a cerapodan dinosaur. [212]
  • A partial skeleton of a possible cerapodan dinosaur from the Middle Jurassic Kilmaluag Formation (United Kingdom) is described by Panciroli et al. (2025), representing the most complete non-avian dinosaur fossil found from Scotland to date. [213]
  • Pintore, Houssaye & Hutchinson (2025) compare the morphology of the femora of 35 ornithopod species and their adaptations to changes of body mass and locomotor habits throughout the evolutionary history of ornithopods, and interpret their findings as consistent with predominant quadrupedalism in hadrosaurids and varying amounts of bipedalism and quadrupedalism in other ornithopods. [214]
  • A study on the bone histology of Notohypsilophodon comodorensis and Sektensaurus sanjuanboscoi , as well as on the evolution on elasmarians and on their environment, is published by Ibiricu et al. (2025). [215]
  • A partial hindlimb of an ornithopod with probable elasmarian affinities, representing the most complete small-bodied ornithopod specimen from the Cenomanian Griman Creek Formation (Australia) reported to date, is described by Bell et al. (2025). [216]
  • Maíllo et al. (2025) study bone histology of a partial skeleton of a subadult ornithopod individual from the Cretaceous Maestrazgo Basin (Spain), providing evidence of variability of histology of bone elements used for studies of the skeletochronology of ornithopod specimens, depending on the studied taxon. [217]
  • Description of a well-preserved skull of a juvenile specimen of Jeholosaurus shangyuanensis from the Lower Cretaceous Yixian Formation (China) and a study on the phylogenetic relationships of this species is published by Bertozzo et al. (2025). [218]
  • Guillermo-Ochoa et al. (2025) describe a track of a small ornithopod from the Albian-Turonian Arcurquina Formation (Peru), likely produced during an underwater locomotion. [219]
  • Devereaux et al. (2025) describe the cranial endocast of Fostoria dhimbangunmal . [220]
  • Fossil material of a previously unrecognized, large-sized, early-diverging member of Ankylopollexia is described from the Upper Jurassic beds of the Lusitanian Basin (Portugal) by Rotatori et al. (2025). [221]
  • New ornithopod fossil material, interpreted as likely representing the oldest fossil material of members of Styracosterna from the Early Cretaceous of the Iberian Peninsula reported to date, is described from the Valanginian-Hauterivian strata of the Oncala or Enciso Group from the El Horcajo site (Spain) by García-Palou, Isasmendi & Torices (2025). [222]
  • A hadrosauroid humerus representing the oldest record of a member of the group from the Transylvanian Basin reported to date is described from the Campanian Sebeș Formation (Romania) by Ebner et al. (2025). [223]
  • Jiménez-Moreno et al. (2025) use mathematical models and modern ecological analogs to infer the population dynamics of Mexican hadrosauroids based on their estimated body mass, and suggest that smaller species had a higher average density compared to larger species, which had a lower average density. [224]
  • The partial skeleton of a hadrosaurid interpreted as the first member of the tribe Lambeosaurini reported from the Upper Cretaceous strata from South China is described from the Dalangshan Formation by Wang et al. (2025). [225]
  • Aureliano et al. (2025) study the internal vertebral microanatomy of Huallasaurus australis , finding evidence of resemblance of the vertebral vascular pattern to that of Silesaurus and no evidence of presence of invasive air sac diverticula. [226]
  • Bert et al. (2025) calculate resting and maximum metabolic rates of neonates of Maiasaura peeblesorum , interpreted as consistent with a physiology more similar to those of extant fast-growing endotherms than those of extant reptiles, and interpret Maiasaura as most likely altricial. [227]
  • Wroblewski (2025) describes fossil material of Stygimoloch spinifer from the Maastrichtian Ferris Formation (Wyoming, United States), representing the southernmost record of the species reported to date. [228]
  • Ishikawa et al. (2025) use computed tomography to describe a psittacosaurid skull similar to the holotype of Hongshanosaurus houi, and reinterpret this species as belonging to a distinct taxon in the genus Psittacosaurus , coining the new combination P. houi. [229]
  • A study on the bone histology and growth of Liaoceratops yanzigouensis is published by Guo, He & Zhao (2025). [230]
  • Mallon et al. (2025) report that fossil material of only one species of Triceratops (T. prorsus) was found in the lower Scollard Formation (Alberta, Canada) and Frenchman Formation (Saskatchewan, Canada), contemporaneous with the upper third of the Hell Creek Formation that also contains fossil material of T. prorsus, and interpret the fossil record of Triceratops as consistent with anagenetic relationship between the Triceratops horridus and T. prorsus. [231]
  • Enriquez et al. (2025) compare scale growth in Chasmosaurus belli , Prosaurolophus maximus and extant reptiles, and find that scale shapes were mostly retained through growth in the studied taxa. [232]

Birds

New bird taxa

NameNoveltyStatusAuthorsAgeType localityCountryNotesImages

Aenigmatorhynchus [233]

Gen. et sp. nov

Valid

Mayr & Smith

Eocene

Messel Formation

Flag of Germany.svg Germany

A bird of uncertain affinities. The type species is A. rarus.

Aenigmatorhynchus rarus (referred specimen).png

Amazonetta cubensis [234]

Sp. nov

Valid

Zelenkov

Pleistocene

Flag of Cuba.svg Cuba

A duck related to the Brazilian teal.

Apus boanoi [235]

Sp. nov

Pavia et al.

Pliocene

Langebaanweg

Flag of South Africa.svg South Africa

A swift, a species of Apus

Archaeodyptes [236]

Gen. et sp. nov

Valid

Mayr et al.

Paleocene

Waipara Greensand

Flag of New Zealand.svg New Zealand

An early-diverging sphenisciform. The type species is A. waitahaorum.

Australarus [237]

Gen. et sp. nov

De Pietri et al.

Miocene

Bannockburn Formation

Flag of New Zealand.svg New Zealand

A member of the family Laridae. The type species is A. bakeri.

Baminornis [238]

Gen. et sp. nov

Valid

Chen et al.

Late Jurassic (Tithonian)

Nanyuan Formation

Flag of the People's Republic of China.svg China

An early avialan bearing a pygostyle. The type species is B. zhenghensis.

Consoravis [239]

Gen. et sp. nov

Ksepka et al.

Eocene

Green River Formation

Flag of the United States.svg United States
(Flag of Wyoming.svg Wyoming)

A member of the family Morsoravidae. The type species is C. turdirostris.

Daniadyptes [236]

Gen. et sp. nov

Valid

Mayr et al.

Paleocene

Waipara Greensand

Flag of New Zealand.svg New Zealand

An early-diverging sphenisciform. The type species is D. primaevus.

Fucadytes [240]

Gen. et sp. nov

Valid

Mayr & Goedert

Oligocene

Makah Formation

Flag of the United States.svg United States
(Flag of Washington.svg Washington)

A member of the family Plotopteridae belonging to the subfamily Tonsalinae. The type species is F. discrepans.

Gracanicanetta [241]

Gen. et sp. nov

Valid

Bocheński et al.

Miocene (Langhian)

Flag of Bosnia and Herzegovina.svg Bosnia and Herzegovina

A duck. The type species is G. happi.

Gracilisgallus [242]

Gen. et sp. nov

Yu & Li

Late Miocene-early Pliocene

Linxia Basin (upper Liushu Formation to lower Hewangjia Formation)

Flag of the People's Republic of China.svg China

A member of the family Phasianidae. The type species is G. linxia.

Hunucornis [243]

Gen. et sp. nov

Agnolín et al.

Miocene

Las Flores Formation

Flag of Argentina.svg Argentina

A grebe. Genus includes new species H. huayanen.

Miolarus [237]

Gen. et sp. nov

De Pietri et al.

Miocene

Bannockburn Formation

Flag of New Zealand.svg New Zealand

A member of the family Laridae. The type species is M. rectirostrum.

Miostrepera [244]

Gen. et sp. nov

Valid

Worthy et al.

Miocene

Bannockburn Formation

Flag of New Zealand.svg New Zealand

A member of the family Artamidae belonging to the subfamily Cracticinae. The type species is M. canora

Novavis [245]

Gen. et sp. nov

Valid

O'Connor et al.

Early Cretaceous

Xiagou Formation

Flag of the People's Republic of China.svg China

A enantiornithean. The type species is N. pubisculata.

Palaelodus haroldocontii [243]

Sp. nov

Agnolín et al.

Miocene

Las Flores Formation

Flag of Argentina.svg Argentina

?Parvigrus ypresiensis [246]

Sp. nov

Valid

Mayr & Kitchener

Eocene (Ypresian)

London Clay

Flag of the United Kingdom.svg United Kingdom

A member of the family Parvigruidae.

? Pseudocrypturus danielsi [247]

Sp. nov

Valid

Mayr & Kitchener

Eocene (Ypresian)

London Clay

Flag of the United Kingdom.svg United Kingdom

A member of the family Lithornithidae; a species of Pseudocrypturus.

? Pseudocrypturus gracilipes [247]

Sp. nov

Valid

Mayr & Kitchener

Eocene (Ypresian)

London Clay

Flag of the United Kingdom.svg United Kingdom

A member of the family Lithornithidae; a species of Pseudocrypturus.

Shuilingornis [248]

Gen. et sp. nov

Valid

Wang et al.

Early Cretaceous

Jiufotang Formation

Flag of the People's Republic of China.svg China

A euornithean in the family Gansuidae. The type species is S. angelai. Announced in 2024; the final article version was published in 2025.

Shuilingornis angelai.png

Tadorna rekohu [249]

Sp. nov

Valid

Rawlence et al.

Holocene

Flag of New Zealand.svg New Zealand

A shelduck, a species of Tadorna .

Waimanutaha [236]

Gen. et sp. nov

Valid

Mayr et al.

Paleocene

Waipara Greensand

Flag of New Zealand.svg New Zealand

An early-diverging sphenisciform. The type species is W. kenlovei.

Waiparadyptes [236]

Gen. et sp. nov

Valid

Mayr et al.

Paleocene

Waipara Greensand

Flag of New Zealand.svg New Zealand

An early-diverging sphenisciform. The type species is W. gracilitarsus.

Waltonius [246]

Gen. et sp. nov

Valid

Mayr & Kitchener

Eocene (Ypresian)

London Clay

Flag of the United Kingdom.svg United Kingdom

A stone-curlew or a bird with affinities with this group. The type species is W. burhinoides.

Zqueheanas [243]

Gen. et sp. nov

Agnolín et al.

Miocene

Las Flores Formation

Flag of Argentina.svg Argentina

A duck belonging to the subfamily Tadorninae. Genus includes new species Z. hebe.

Avian research

Pterosaurs

New pterosaur taxa

NameNoveltyStatusAuthorsAgeType localityCountryNotesImages

Darwinopterus camposi [287]

Sp. nov

Valid

Cheng et al.

Jurassic

Tiaojishan Formation

Flag of the People's Republic of China.svg China

A member of the family Wukongopteridae; a species of Darwinopterus .

Reconstruction of the skull and lower jaw of Darwinopterus camposi.jpg

Eotephradactylus [288]

Gen. et sp. nov

Valid

Kligman et al.

Late Triassic

Chinle Formation

Flag of the United States.svg United States
(Flag of Arizona.svg Arizona)

An early-diverging pterosaur. The type species is E. mcintireae.

Eotephradactylus (life restoration).png

Garudapterus [289]

Gen. et sp. nov

Valid

Manitkoon et al.

Early Cretaceous

Khorat Group

Flag of Thailand.svg Thailand

A member of the family Ctenochasmatidae belonging to the subfamily Gnathosaurinae. The type species is G. buffetauti.

Garudapterus 1.jpg

Infernodrakon [290]

Gen. et sp. nov

Thomas et al.

Late Cretaceous (Maastrichtian)

Hell Creek Formation

Flag of the United States.svg United States
(Flag of Montana.svg Montana)

A member of the family Azhdarchidae. The type species is I. hastacollis.

Infernodrakon.png

Nipponopterus [291]

Gen. et sp. nov

Valid

Zhou et al.

Late Cretaceous

Mifune Group

Flag of Japan.svg Japan

A member of the family Azhdarchidae. The type species is N. mifunensis. Announced in 2024; the final article version was published in 2025.

Nipponopterus Skeletal.svg

Saratovia [292]

Gen. et sp. nov

Valid

Averianov

Late Cretaceous (Cenomanian)

Melovatka Formation

Flag of Russia.svg Russia
(Flag of Saratov Oblast.svg Saratov Oblast)

A member of Ornithocheirae belonging to the group Targaryendraconia. The type species is S. glickmani.

Saratovia glickmani (holotype, surface rendering).jpg

Spathagnathus [293]

Gen. et sp. nov

Valid

Fernandes et al.

Late Jurassic (Kimmeridgian)

Torleite Formation

Flag of Germany.svg Germany

A member of the family Ctenochasmatidae belonging to the subfamily Gnathosaurinae. The type species is S. roeperi.

Spathagnathus (life restoration).png

Pterosaur research

Other archosaurs

Other new archosaur taxa

NameNoveltyStatusAuthorsAgeType localityCountryNotesImages

Gondwanax [315]

Gen. et sp. nov

Valid

Müller

MiddleLate Triassic (Ladinian–early Carnian)

Pinheiros-Chiniquá Sequence of the Santa Maria Supersequence

Flag of Brazil.svg Brazil

A sulcimentisaurian member of the possibly paraphyletic family Silesauridae. The type species is G. paraisensis. Announced in 2024; the final article version was published in 2025.

Gondwanax paraisensis.png

Itaguyra [316]

Gen. et sp. nov

Valid

Paes Neto et al.

Late Triassic (Carnian)

Santa Cruz Sequence of the Santa Maria Supersequence

Flag of Brazil.svg Brazil

A "silesaurid". The type species is I. occulta.

Other archosaur research

General research

References

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