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This article records new taxa of fossil archosaurs of every kind that are scheduled described during the year 2025, as well as other significant discoveries and events related to paleontology of archosaurs that are scheduled to occur in the year 2025.

Pseudosuchians

New pseudosuchian taxa

General pseudosuchian research

Aetosaur research

Crocodylomorph research

• Kuzmin et al. (2025) describe the braincase osteology and neuroanatomy of Paralligator, and interpret their findings as indicative of similarity of brain modifications during ontogeny in paralligatorids and extant crocodilians.
• A study on the anatomy and affinities of the first specimens of Borealosuchus from earliest Paleocene of Colorado, filling temporal and geographical gaps in the fossil record of members of the genus, is published by Lessner, Petermann & Lyson (2025).
• Pligersdorffer, Burke & Mannion (2025) reconstruct the endocranial anatomy of Argochampsa krebsi, and report evidence of presence of salt glands in the studied gavialoid.

Non-avian dinosaurs

New dinosaur taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Ahvaytum	Gen. et sp. nov		Lovelace et al.	Late Triassic (Carnian)	Popo Agie Formation	United States ( Wyoming)	An early saurischian, possibly a basal sauropodomorph. The type species is A. bahndooiveche.
Archaeocursor	Gen. et sp. nov	Valid	Yao et al.	Early Jurassic (Sinemurian–Pliensbachian)	Ziliujing Formation	China	A basal ornithischian. The type species is A. asiaticus. Announced in 2024; the final article version was published in 2025.
Dzharacursor	Gen. et comb. nov		Averianov & Sues	Late Cretaceous (Turonian)	Bissekty Formation	Uzbekistan	An ornithomimid theropod. The type species is "Archaeornithomimus" bissektensis Nesov (1995).
Emiliasaura	Gen. et sp. nov	In press	Coria et al.	Early Cretaceous (Valanginian)	Mulichinco Formation	Argentina	An ornithopod belonging to the group Rhabdodontomorpha. The type species is E. alessandrii. Announced in 2024; the final article version will be published in 2025.
Qianjiangsaurus	Gen. et sp. nov	Valid	Dai et al.	Late Cretaceous	Zhengyang Formation	China	An early-diverging hadrosauromorph. The type species is Q. changshengi. Announced in 2024; the final article version will be published in 2025.
Tameryraptor	Gen. et sp. nov		Kellermann, Cuesta & Rauhut	Late Cretaceous (Cenomanian)	Bahariya Formation	Egypt	An carcharodontosaurid theropod. The type species is T. markgrafi.
Yuanyanglong	Gen. et sp. nov	In press	Hao et al.	Early Cretaceous	Miaogou Formation	China	An oviraptorosaur theropod. The type species is Y. bainian. Announced in 2024; the final article version will be published in 2025.

General non-avian dinosaur research

• Review of sources of information about dinosaur locomotion, and of studies of dinosaur locomotion from the preceding years, is published by Falkingham (2025).
• Review of studies of dinosaur reproduction and ontogeny, and of challenges in the studies of dinosaur reproductive biology, is published by Chapelle, Griffin & Pol (2025).
• Deiques et al. (2025) report the discovery of new dinosaur tracks from the Upper Jurassic Guará Formation (Brazil), including second record of an ankylosaur track and the best preserved theropod track from the formation reported to date.
• A study on habitat preferences of Campanian and Maastrichtian dinosaurs from south-western Europe is published by Vázquez López et al. (2025).

Saurischian research

Theropod research

• 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.
• 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)
• 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.

Sauropodomorph research

• 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).

Ornithischian research

Thyreophoran research

Cerapod research

Birds

New bird taxa

Avian research

• New specimen of Archaeopteryx, representing the third specimen belonging to this genus found in the Tithonian Mörnsheim Formation (Germany), is described by Foth et al. (2025).
• Evidence from the study of moa coprolites, indicating that moa ate and likely spread truffle-like fungi that are endemic to New Zealand, is presented by Boast et al. (2025).

Pterosaurs

New taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Nipponopterus	Gen. et sp. nov	In press	Zhou et al.	Late Cretaceous	Mifune Group	Japan	A member of the family Azhdarchidae. The type species is N. mifunensis. Announced in 2024; the final article version will be published in 2025.

Pterosaur research

• Hone & McDavid (2025) describe the largest known specimen of Rhamphorhynchus muensteri (wingspan 1.8 metres (5.9 ft)) from the Solnhofen Limestone (Germany) and discuss its implications for anatomical transformations through ontogeny in the genus and other rhamphorhynchines.

Other archosaurs

Other new archosaur taxa

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Gondwanax	Gen. et sp. nov	In press	Müller	Middle–Late Triassic (Ladinian–early Carnian)	Pinheiros-Chiniquá Sequence of the Santa Maria Supersequence	Brazil	A sulcimentisaurian member of the possibly paraphyletic family Silesauridae. The type species is G. paraisensis. Announced in 2024; the final article version will be published in 2025.

Other archosaur research

General research

References

1. Haldar, A.; Ray, S.; Bandyopadhyay, S. (2025). "A new paratypothoracin aetosaur (Archosauria: Pseudosuchia) from the Upper Triassic Dharmaram Formation of India and its biostratigraphic implications". Journal of Vertebrate Paleontology. e2439533. doi:10.1080/02724634.2024.2439533.
2. Kuzmin, I. T.; Sichinava, E. A.; Mazur, E. V.; Gombolevskiy, V. A.; Sennikov, A. G.; Skutschas, P. P. (2025). "Neurocranial anatomy of Paralligator (Neosuchia: Paralligatoridae) from the Upper Cretaceous of Mongolia". Zoological Journal of the Linnean Society. 203 (1). zlae177. doi:10.1093/zoolinnean/zlae177.
3. Lessner, E. J.; Petermann, H.; Lyson, T. R. (2025). "First record of Borealosuchus sternbergii from the lower Paleocene Denver Formation (lower Danian), Colorado (Denver Basin)". Journal of Vertebrate Paleontology. e2434214. doi:10.1080/02724634.2024.2434214.
4. Pligersdorffer, C. C.; Burke, P. M. J.; Mannion, P. D. (2025). "Evaluation of the endocranial anatomy of the early Paleogene north African gavialoid crocodylian Argochampsa krebsi and evolutionary implications for adaptation to salinity tolerance in marine crocodyliforms". Journal of Anatomy. doi:10.1111/joa.14213. PMID 39814549.
5. Lovelace, David M; Kufner, Aaron M; Fitch, Adam J; Curry Rogers, Kristina; Schmitz, Mark; Schwartz, Darin M; LeClair-Diaz, Amanda; St.Clair, Lynette; Mann, Joshua; Teran, Reba (2025-01-01). "Rethinking dinosaur origins: oldest known equatorial dinosaur-bearing assemblage (mid-late Carnian Popo Agie FM, Wyoming, USA)". Zoological Journal of the Linnean Society. 203 (1): zlae153. doi:10.1093/zoolinnean/zlae153. ISSN 0024-4082.
6. Xi, Yao; Zhao, Qi; Ren, Tingcong; Wei, Guangbiao; Xu, Xing (2025-01-17). "New evidence for the earliest ornithischian dinosaurs from Asia". iScience. 28 (1). doi:10.1016/j.isci.2024.111641.
7. Averianov, A. O.; Sues, H.-D. (2025). "A new ornithomimid theropod from the Upper Cretaceous Bissekty Formation of Uzbekistan". Journal of Vertebrate Paleontology. e2433759. doi:10.1080/02724634.2024.2433759.
8. Coria, R. A.; Cerda, A. A.; Escaso, F.; Baiano, M. A.; Bellardini, F.; Braun, A.; Coria, L. M.; Gutierrez, J. M.; Pino, D.; Windholz, G. J.; Currie, P. J.; Ortega, F. (2024). "First Valanginian (Early Cretaceous) ornithopod (Dinosauria, Ornithischia) from Patagonia". Cretaceous Research. 166. 106027. doi:10.1016/j.cretres.2024.106027.
9. Dai, Hui; Ma, Qingyu; Xiong, Can; Lin, Yu; Zeng, Hui; Tan, Chao; Wang, Jun; Zhang, Yuguang; Xing, Hai (2024-08-27). "A new late-diverging non-hadrosaurid hadrosauroid (Dinosauria: Ornithopoda) from southwest China: support for interchange of dinosaur faunas across East Asia during the Late Cretaceous". Cretaceous Research. 166: 105995. doi:10.1016/j.cretres.2024.105995. ISSN 0195-6671.
10. Kellermann, Maximilian; Cuesta, Elena; Rauhut, Oliver W. M. (2025-01-14). "Re-evaluation of the Bahariya Formation carcharodontosaurid (Dinosauria: Theropoda) and its implications for allosauroid phylogeny". PLOS ONE. 20 (1): e0311096. doi:10.1371/journal.pone.0311096. ISSN 1932-6203. PMC 11731741.
11. Hao, M.; Li, Z.; Wang, Z.; Wang, S.; Ma, F.; Qinggele; King, J. L.; Pei, R.; Zhao, Q.; Xu, X. (2024). "A new oviraptorosaur from the Lower Cretaceous Miaogou Formation of western Inner Mongolia, China". Cretaceous Research. 167. 106023. doi:10.1016/j.cretres.2024.106023.
12. Falkingham, P. L. (2025). "Reconstructing dinosaur locomotion". Biology Letters. 21 (1). 20240441. doi:10.1098/rsbl.2024.0441. PMC 11732409. PMID 39809325.
13. Chapelle, K. E. J.; Griffin, C. T.; Pol, D. (2025). "Growing with dinosaurs: a review of dinosaur reproduction and ontogeny". Biology Letters. 21 (1). 20240474. doi:10.1098/rsbl.2024.0474. PMC 11732415. PMID 39809324.
14. Deiques, D.; Barcelos-Silveira, A.; Dentzien-Dias, P.; Francischini, H. (2025). "Dinosaur tracks from the Guará Formation (Brazil) shed light on the biodiversity of a South American Late Jurassic humid desert". Journal of South American Earth Sciences. 105364. doi:10.1016/j.jsames.2025.105364.
15. Vázquez López, B. J.; Sellés, A.; Prieto-Márquez, A.; Vila, B. (2025). "Habitat preference of the dinosaurs from the Ibero-Armorican domain (Upper Cretaceous, south-western Europe)". Swiss Journal of Palaeontology. 144. 4. doi:10.1186/s13358-024-00346-1.
16. Piñuela, L.; García-Ramos, J. C.; Moreno, K.; Leonardi, G.; Finsterbusch-Lagos, O. E. (2025). "Exceptional and striking 3D track-detached undertrack specimens from the Upper Jurassic of Asturias (N Spain)". Rivista Italiana di Paleontologia e Stratigrafia. 131 (1): 11–24. doi:10.54103/2039-4942/23711.
17. Kubo, K.; Kobayashi, Y. (2025). "Cursorial ecomorphology and temporal patterns in theropod dinosaur evolution during the mid-Cretaceous". Royal Society Open Science. 12 (1). 241178. doi:10.1098/rsos.241178. PMC 11732414.
18. Scherer, C. R. (2025). "Multiple lines of evidence support anagenesis in Daspletosaurus and cladogenesis in derived tyrannosaurines". Cretaceous Research. 106080. doi:10.1016/j.cretres.2025.106080.
19. Lacerda, L.; Bandeira, K. L. N.; Navarro, B. A.; Bertolossi, M. L. P.; Gallo, V.; Silva, R. C.; Campos, D. A.; Kellner, A. W. A. (2025). "New lithostrotian specimens (Neosauropoda: Titanosauria) from the Mato Grosso State (Western Brazil) and comments about tail injuries in sauropod dinosaurs". Journal of South American Earth Sciences. 105336. doi:10.1016/j.jsames.2024.105336.
20. O'Connor, Jingmai K.; Atterholt, Jessie; Clark, Alexander D.; Zhou, Linqi; Peng, Cuo; Zhang, Xiaoqin; You, Hailu (2025-01-17). "A new enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Xiagou Formation with unusually short pubes". Geobios. doi:10.1016/j.geobios.2024.11.003. ISSN 0016-6995.
21. ^ Mayr, G.; Kitchener, A. C. (2025). "The Lithornithiformes (Aves) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK)". Papers in Palaeontology. 11 (1). e1611. doi:10.1002/spp2.1611.
22. Wang, Xuri; Cau, Andrea; Wang, Yinuo; Kundrát, Martin; Zhang, Guili; Liu, Yichuan; Chiappe, Luis M. (February 2025). "A new gansuid bird (Avialae, Euornithes) from the Lower Cretaceous (Aptian) Jiufotang Formation of Jianchang, western Liaoning, China". Cretaceous Research. 166: 106014. doi:10.1016/j.cretres.2024.106014. ISSN 0195-6671.
23. Foth, C.; van de Kamp, T.; Tischlinger, H.; Kantelis, T.; Carney, R. M.; Zuber, M.; Hamann, E.; Wallaard, J. J. W.; Lenz, N.; Rauhut, O. W. M.; Frey, E. (2025). "A new Archaeopteryx from the lower Tithonian Mörnsheim Formation at Mühlheim (Late Jurassic)". Fossil Record. 28 (1): 17–43. doi:10.3897/fr.28.e131671.
24. Boast, A. P.; Wood, J. R.; Cooper, J.; Bolstridge, N.; Perry, G. L. W.; Wilmshurst, J. M. (2025). "DNA and spores from coprolites reveal that colourful truffle-like fungi endemic to New Zealand were consumed by extinct moa (Dinornithiformes)". Biology Letters. 21 (1). 20240440. doi:10.1098/rsbl.2024.0440. PMC 11732427. PMID 39809323.
25. Zhou, X.; Ikegami, N.; Pêgas, R. V.; Yoshinaga, T.; Sato, T.; Mukunoki, T.; Otani, J.; Kobayashi, Y. (2024). "Reassessment of an azhdarchid pterosaur specimen from the Mifune Group, Upper Cretaceous of Japan". Cretaceous Research. 167. 106046. doi:10.1016/j.cretres.2024.106046.
26. Hone, David W. E.; McDavid, Skye N. (2025-01-02). "A giant specimen of Rhamphorhynchus muensteri and comments on the ontogeny of rhamphorhynchines". PeerJ. 13: e18587. doi:10.7717/peerj.18587. ISSN 2167-8359. PMC 11700493. PMID 39763697.
27. Temp Müller, Rodrigo (2024). "A new "silesaurid" from the oldest dinosauromorph-bearing beds of South America provides insights into the early evolution of bird-line archosaurs". Gondwana Research. 137 (in press): 13–28. doi:10.1016/j.gr.2024.09.007.

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• 2025 in paleontology