Temporal range: Middle–Late Triassic Possible Early Triassic record
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Mounted skeleton of Postosuchus kirkpatricki in the Museum of Texas Tech University
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Clade:
Archosauria
Clade:
Pseudosuchia
Clade:
Loricata
Family:
†Rauisuchidae Huene, 1942
Genera
†Arganasuchus?
†Fenhosuchus?
†Jushatyria?
†Polonosuchus
†Postosuchus
†Procerosuchus?
†Rauisuchus
†Scolotosuchus
†Teratosaurus
†Tikisuchus?
†Tsylmosuchus?
†Vivaron
†Vjushkovisaurus?
†Vytshegdosuchus?
Synonyms
Teratosauridae Cope, 1871
Rauisuchidae is a group of large (up to 6 metres (20 ft)[1]) predatory Triassic archosaurs. Some disagreement exists over which genera should be included in the Rauisuchidae and which should be in the related Prestosuchidae and Poposauridae, and indeed whether these should even be thought of as separate valid families. Rauisuchids occurred throughout much of the Triassic, and may have first occurred in the Early Triassic if some archosaurian taxa such as Scythosuchus and Tsylmosuchus are considered to be within the family.[2]
An early cladistic analysis of crocodylotarsan (pseudosuchian) archosaurs included Lotosaurus, Fasolasuchus, Rauisuchus, and "the Kupferzell rauisuchid" (later called Batrachotomus) within the Rauisuchidae.[3] However, a later study found that Batrachotomus was a more basal pseudosuchian only slightly more "advanced" than Prestosuchus.[4] In addition, the toothless Lotosaurus has been found to be more closely related to the Ctenosauriscidae, a clade of poposauroids with sails on their backs.[5]
Two genera, previously classified as poposaurids, are in fact rauisuchids. These include Teratosaurus[6][7] and Postosuchus.[8]
^Weinbaum, J. C. (2013). "Postcranial skeleton of Postosuchus kirkpatricki (Archosauria: Paracrocodylomorpha), from the upper Triassic of the United States". Geological Society, London, Special Publications. 379 (1): 525–553. Bibcode:2013GSLSP.379..525W. doi:10.1144/SP379.7. S2CID 129092753.
^Gower, D. J.; Sennikov, A. G. (2003). "Early archosaurs from Russia". In Benton, M. J.; Shishkin, M. A.; Unwin, D. M. (eds.). The Age of Dinosaurs in Russia and Mongolia. Cambridge: Cambridge University Press. pp. 140–159.
^Parrish, J. M. (1993). "Phylogeny of the Crocodylotarsi, with reference to archosaurian and crurotarsan monophyly". Journal of Vertebrate Paleontology. 13 (3): 287–308. doi:10.1080/02724634.1993.10011511. S2CID 84288744.
^Gower, David J. (2002). "Braincase evolution in Suchian Archosaurs (Reptilia: Diapsida): Evidence from the Rauisuchian Batrachotomus kupferzellensis". Zoological Journal of the Linnean Society. 136 (1): 49–76. doi:10.1046/j.1096-3642.2002.00025.x.
^Nesbitt, S.J. (2005). "Osteology of the Middle Triassic pseudosuchian archosaur Arizonasaurus babbitti". Historical Biology. 8 (1): 19–47. doi:10.1080/08912960500476499. S2CID 84326151.
^Long, Robert A.; Murry, Phillip. A. (1995). "Late Triassic (Carnian and Norian) tetrapods from the southwestern United States". New Mexico Museum of Natural History and Science, Bulletin. 4: 1–254.
^Galton PM, Walker AD. (November 1996). "Bromsgroveia from the Middle Triassic of England, the earliest record of a poposaurid thecodontian reptile (Archosauria: Rauisuchia)". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 201 (3): 303–325. doi:10.1127/njgpa/201/1996/303.
^Weinbaum, J.C.; Hungerbühler, A. (2007). "A revision of Poposaurus gracilis (Archosauria: Suchia) based on two new specimens from the Late Triassic of the southwestern U.S.A." Paläontologische Zeitschrift. 81 (2): 131–145. doi:10.1007/BF02988388. S2CID 84822632.
Rauisuchidae is a group of large (up to 6 metres (20 ft)) predatory Triassic archosaurs. Some disagreement exists over which genera should be included...
Clark, 1988: the node-based taxon including the last common ancestor of Rauisuchidae and aetosaurs and all of its descendants. Benton and Clark also named...
regarded as paraphyletic. Rauisuchia traditionally included the families Rauisuchidae and Poposauridae to the exclusion of Crocodylomorpha, but Parrish found...
pseudosuchians. Three families have historically been recognised: Prestosuchidae, Rauisuchidae, and Poposauridae, as well as a number of forms (e.g. those from the...
basal crocodylomorph, thus referable neither to P. kirkpatricki nor to Rauisuchidae. In their description of Vivaron, Lessner et al. (2016) questioned the...
Phytosauria† Family Ornithosuchidae † Family Stagonolepididae † Family Rauisuchidae † Superfamily Poposauroidea † Superorder Crocodylomorpha Order Crocodylia...
placed Crocodylomorpha and an array of "rauisuchians" within Loricata. Rauisuchidae was found to be a small clade, forming the sister taxon of Crocodylomorpha...
250 kg (550 lb). Rauisuchus is distinguished from other members of the Rauisuchidae on the basis of a knob-like thickening on the base of the posterior process...
(2000). "Redescription of the skull of Saurosuchus galilei (Archosauria: Rauisuchidae)". Journal of Vertebrate Paleontology. 20 (2): 302–316. doi:10...
recovered Rauisuchidae as monophyletic but completely unresolved, with all six species in a polytomy. Surveys of the interrelationships within Rauisuchidae found...
of the crocodiles. They likely belonged to either prestosuchidae or rauisuchidae groups, which were both large carnivores with semi-erect gaits. Chirotherium...
hypothesized that Batrachotomus (then "Kupferzellia") belonged to the family of Rauisuchidae, another clade of carnivorous reptiles, and species of Rauisuchus. However...
postcranial skeleton in archosaurs in connection with new finds of the Rauisuchidae in the Early Triassic of Russia". Paleontological Journal (6): 44–56...
primitive crocodylomorph, a group including suchians more derived than Rauisuchidae. According to a phylogenetic analysis by Zanno et al., Carnufex was found...
Lipovskaya Formation Russia ( Volgograd Oblast) A member of the family Rauisuchidae. The type species is S. basileus. Published online in 2023, but the issue...
Lythrosuchus from rauisuchians like Postosuchus, which they held in the family Rauisuchidae. The known material of Poposaurus was again described in 2007, along...
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