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.
Pseudosuchians
New pseudosuchian taxa NameNoveltyStatusAuthorsAgeType localityLocationNotesImageCrocodylus sudaniSp. novValidSalih et al.Late PleistoceneAtbara RiverA crocodile, a species of Crocodylus.IbirasuchusGen. et sp. novValidIori et al.Late CretaceousSão José do Rio Preto FormationAn itasuchid peirosaurian. The type species is I. gelcae.KostensuchusGen. et sp. novValidNovas et al.Late Cretaceous (Maastrichtian)Chorrillo FormationA peirosaurid. The type species is K. atrox.KuttysuchusGen. et sp. novValidHaldar, Ray & BandyopadhyayLate TriassicLower Dharmaram FormationAn aetosaur belonging to the tribe Paratypothoracini. The type species is K. minori.OlkasuchusGen. et sp. novValidSotomayor et al.Late Triassic (Norian)Los Colorados FormationAn aetosaur. The type species is O. walasto.PaarthurnaxGen. et sp. novPlatt, Adams & BrochuEarly Cretaceous (Aptian–Albian)Holly Creek Formation()A neosuchian with anatomical similarities to goniopholidids and paluxysuchids. The type species is P. holliensis.PattisauraGen. et sp. novValidWu et al.Late TriassicCooper Canyon Formation()An early member of Crocodylomorpha. The type species is P. gracilis.Piscogavialis laberintoensisSp. novZamora-Vega et al.MiocenePisco FormationA gavialid.PseudogavialisGen. et comb. novValidCourville et al.Oligocene–MioceneLower SiwalikA member of Gavialoidea. The type species is "Gharialis" curvirostris Lydekker (1886).SissokosuchusGen. et sp. novWilberg et al.Early CretaceousContinental intercalaireAn itasuchid peirosaurian. The type species is S. maliensis.TaihangosuchusGen. et sp. novValidWu et al.Middle TriassicErmaying FormationA member of the family Gracilisuchidae. The type species is T. wuxiangensis.TainrakuasuchusGen. et sp. novMüller et al.Middle Triassic (Ladinian)Santa Maria Supersequence (Dinodontosaurus Assemblage Zone)A poposauroid. The type species is T. bellator.TelkaraluraGen. et sp. novValidVon Baczko et al.Late Triassic (Carnian)Chañares FormationA member of the family Gracilisuchidae. The type species is T. coniceti.TewkensuchusGen. et sp. novValidBravo et al.Early PaleoceneSalamanca FormationA sebecosuchian. The type species is T. salamanquensisThikarisuchusGen. et sp. novAllen et al.Late Cretaceous (Cenomanian)Blackleaf Formation()A neosuchian related to Wannchampsus and assigned to the new clade Wannchampsidae. The type species is T. xenodentes.ThilastikosuchusGen. et sp. novValidCarvalho et al.Early CretaceousQuiricó FormationA notosuchian. The type species is T. scutorectangularis.WadisuchusGen. et sp. novValidSaber et al.Late Cretaceous (Campanian)Quseir FormationA member of the family Dyrosauridae. The type species is W. kassabi.
General pseudosuchian research A study on quadrate bones of extant and extinct suchians, providing evidence that quadrate orientation and direction of jaw joint reaction forces were tightly coupled throughout the evolutionary history of suchians, is published by Sellers et al. (2025). Lecuona et al. (2025) create a three-dimensional biomechanical model of the whole body of Gracilisuchus stipanicicorum, and interpret the studied archosaur as likely quadrupedal and definitely not an obligate biped. Fitch, Kammerer & Nesbitt (2025) describe femora of poposauroids similar to Poposaurus gracilis from the Cumnock and Pekin formations (Chatham Group; North Carolina, United States), expanding known geographical range of Late Triassic poposauroids. McDavid (2025) and Pêgas, Bandeira & Silva (2025) discuss the validity and authorship of the name Prestosuchus, considering the name Huenesuchus a junior synonym. Sues, Ma & Ezcurra (2025) describe a braincase of a member or a relative of the genus Postosuchus from the Carnian Evangeline Member of the Wolfville Formation (Nova Scotia, Canada), and reconstruct its endocast.
Aetosaur research A study on the histology of osteoderms of Stagonolepis olenkae is published by Błaszczeć & Antczak (2025). Reyes et al. (2025) study the anatomy of the holotype specimen of Calyptosuchus wellesi, describe new fossil material of members of the species from the Triassic Chinle Formation (Arizona, United States) providing new information on the skull anatomy of the studied aetosaur, study the phylogenetic relationships of the species, and name a new aetosaur clade Calyptosuchini. Haldar & Ray (2025) identify osteoderms of a probable desmatosuchine aetosaur from the Upper Triassic Tiki Formation (India). Haldar, Ray & Bandyopadhyay (2025) describe distinctive desmatosuchin osteoderms from the Lower Dharmaram Formation, including the first record of cf. Desmatosuchus sp. from India.
Crocodylomorph research A study on the diversity of cranial shapes of crocodylomorphs throughout their evolutionary history is published by Melstrom et al. (2025), who find that crocodylomorphs with generalist dietary ecology were most likely to survive and diversify after mass extinction events. A study on bone histology of Trialestes romeri, providing evidence of a rapid growth rate, is published by Ponce, Cerda & Desojo (2025). Redescription and a study on the affinities of Pseudhesperosuchus jachaleri is published by Leardi (2025). Srinivas et al. (2025) compare biomechanical and functional adaptations of skulls of different shapes in extant and extinct crocodyliforms, providing evidence that terrestrial taxa with dome-shaped skulls, which were not subject to hydrodynamic constraints during their evolution, were better adapted to resisting feeding-induced stresses compared to taxa with broad and flat snouts. Wang et al. (2025) describe a new specimen of Platyognathus hsui from the Lower Jurassic Lufeng Formation (China), identify P. hsui as an early-branching relative of gobiosuchids, and name a new superfamily Gobiosuchoidea. A study on the biodiversity of thalattosuchians throughout their evolutionary history, attempting to identify factors driving thalattosuchian evolution, is published by Forêt et al. (2025). Redescription of Macrospondylus bollensis is published by Johnson et al. (2025). Johnson et al. (2025) study the taphonomy of specimens of Macrospondylus bollensis and Platysuchus multiscrobiculatus from the Posidonia Shale (Germany), and identify features indicative of headfirst seafloor landings of teleosauroid specimens. Bhuttarach et al. (2025) describe fossil material of the possible largest member of the genus Indosinosuchus from the Phu Kradung Formation (Thailand), as well as fossil material of an indeterminate teleosauroid from the Klong Min Formation representing the first record of a member of this group from southern peninsular Thailand. Pellarin et al. (2025) study the femoral histology of Thalattosuchus superciliosus, and interpret the studied crocodylomorph as unlikely to be an endotherm. A study on the variation of the flexure of the tail in Callovian and Late Jurassic metriorhynchids is published by Le Mort et al. (2025). Albuquerque et al. (2025) describe isolated crocodyliform teeth from the Cretaceous (Albian–Cenomanian) Açu Formation (Brazil), including the first records of members of the group Sphagesauria, Itasuchidae and Candidodontidae from the Potiguar Basin reported to date. A study on metabolic rates of notosuchians, providing evidence of mass-independent maximal metabolic rates that were higher than those of extant crocodilians but lower than those of monitor lizards, in published by Sena et al. (2025). A study on the morphology, histology and growth of osteoderms of Late Cretaceous notosuchians from the Bauru Group (Brazil) is published by Cajado et al. (2025). Muscioni et al. (2025) describe fossil material of Doratodon cf. carcharidens from the Campanian strata from the Villaggio del Pescatore site (Italy), providing new information on the anatomy and tooth replacement pattern of Doratodon, including evidence of presence of an alveolar tissue vascularization and innervation system in the mandible that might have provided enhanced tactile sensitivity. The first histological study of appendicular bones of a peirosaurid is published by Navarro et al. (2025), who interpret their findings as indicative of different growth dynamics of the studied individual compared to other notosuchians. A study on the bone histology of Pissarrachampsa sera, providing evidence of differential growth rates among skeletal elements, is published by Aureliano et al. (2025). Redescription and a study of the phylogenetic affinities of Eremosuchus elkoholicus is published by Nicholl et al. (2025). Fossil material of a member or a relative of the genus Sebecus is described from the late Neogene strata of the Yanigua/Los Haitises Formation (Dominican Republic) by Viñola López et al. (2025). Martin & Jattiot (2025) describe fossil material of neosuchians (cf. Pholidosauridae and indeterminate Neosuchia) from the Salazac and Carniol sites in southeastern France, representing one of the few records of crocodylomorph fossils from the Aptian–Albian interval found in marine deposits in Europe. Fossil material of a small-bodied atoposaurid, possibly representing a previously unrecognized taxon and providing information on the neuroanatomy of atoposaurids, is described from the Upper Jurassic Praia Azul Member of the Lourinhã Formation (Portugal) by Puértolas-Pascual (2025). Maréchal et al. (2025) describe fossil material of a hyposaurine dyrosaurid from the Maastrichtian strata from Bentiaba (Angola) and study the diversification rates of dyrosaurids, finding evidence of a hyposaurine diversification during the Maastrichtian. 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. Kubo et al. (2025) study crocodyliform remains from the Turonian Tamagawa Formation (Japan), identify two osteoderms as probable paralligatorid fossil material, and interpret teeth from the studied assemblage as belonging to crocodyliforms that likely fed on mid- to large-sized tetrapods. New allodaposuchid fossil material, providing new information on the postcranial anatomy of members of this group, is described from the Upper Cretaceous (Maastrichtian) strata from the Fontllonga-6 locality (Fontllonga Group; Spain) by Della Giustina, Rocchi & Vila (2025). De Lapparent de Broin (2025) describes a new specimen of Massaliasuchus affuvelensis from the Campanian strata in the Fuveau lignite Mining Basin (Provence, France). 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). Walter et al. (2025) study the phylogenetic affinities of Deinosuchus and recover it as a member of the crocodylian stem group. Kuzmin, Skutschas & Sues (2025) describe a partial skull including the braincase of cf. Tadzhikosuchus sp. from the Turonian Bissekty Formation (Uzbekistan), interpreted as the stratigraphically oldest alligatoroid specimen reported to date and the first record of a Diplocynodon-like alligatoroid from the Late Cretaceous of Central Asia. Evidence from the study of the bone histology of Diplocynodon hantoniensis, interpreted as indicative of a similar growth rate in D. hantoniensis and the American alligator, is published by Hoffman et al. (2025). Description of the anatomy of the inner skull cavities of Diplocynodon tormis is published by Serrano-Martínez et al. (2025). Fossil material of a small alligatoroid, possibly representing a previously unrecognized taxon, is described from the Eocene Clarno Formation (Oregon, United States) by Stout et al. (2025).