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BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Poposauridae ✝

Description

Poposauridae is a family of large carnivorous archosaurs which lived alongside dinosaurs during the Late Triassic. They were around 2.5 to 5 metres (8 ft 2 in to 16 ft 5 in) long. Poposaurids are known from fossil remains from North and South America. While originally believed to be theropod dinosaurs (they mirrored the theropods in a number of respects, such as features of the skull and bipedal locomotion), cladistic analysis has shown them to be more closely related to crocodiles.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4819187https://www.gbif.org/species/4819187
PaleoBioDB ID (PBDB)38262https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38262
Rankfamily
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Poposauridae
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Poposauridae
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SauropsidaHuxley 1864
classReptiliaLaurenti 1768
subclassEureptilia
-RomeriidaGauthier et al. 1988
-Diapsida
-Eosuchia
-NeodiapsidaBenton 1985
-SauriaGauthier 1984
-Archosauromorpha
-CrocopodaEzcurra 2016
-ArchosauriformesGauthier 1986
-EucrocopodaEzcurra 2016
-Archosauria
-Pseudosuchia
-SuchiaKrebs 1974
-ParacrocodylomorphaParrish 1993
familyPoposauridaeNopcsa 1923
Scientific NamePoposauridae
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Poposauridaefamilybelongs to Poposauriastated without evidenceNopcsa, 1923
Poposauridaefamilybelongs to Poposauroideastated with evidenceNopcsa, 1928
Poposauridaefamilybelongs to Poposauroideastated without evidenceHuene, 1934
Poposauridaefamilybelongs to Ornithopodastated without evidenceRoxo, 1937
Poposauridaefamilybelongs to Ornithopodastated with evidenceKuhn, 1946
Poposauridaefamilybelongs to Carnosauriastated with evidenceColbert, 1961
Poposauridaefamilybelongs to CarnosauriaimpliedRomer, 1966
Poposauridaefamilybelongs to Tyrannosauroideastated with evidenceKuhn, 1966
Poposauridaefamilybelongs to Carnosauriastated without evidenceSteel, 1970
Poposauridaefamilybelongs to Pseudosuchiastated without evidenceGalton, 1977
Poposauridaefamilybelongs to Carnosauriastated without evidenceAnderson and Cruickshank, 1978
Poposauridaefamilybelongs to Rauisuchiastated without evidenceGalton, 1985
Poposauridaefamilybelongs to RauisuchiaimpliedCarroll, 1988
Poposauridaefamilybelongs to Suchiastated without evidenceSereno, 1991
Poposauridaefamilybelongs to Paracrocodylomorphastated without evidenceParrish, 1993
Poposauridaefamilybelongs to Rauisuchiastated with evidenceLong and Murry, 1995
Poposauridaefamilybelongs to Paracrocodylomorphastated with evidenceAlcober and Parrish, 1997
Poposauridaefamilybelongs to Poposauroideastated without evidenceWeinbaum and Hungerbühler, 2007
Status (PBDB)extinct
Taxon Size (PBDB)4
First Recorded Appearance237 - 228 Ma
Late/Upper Triassic
Last Recorded Appearance228 - 201 Ma
Mesozoic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Pseudosuchia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)B. F. Nopcsa. 1923. Die Familien der Reptilien [The families of reptiles]. Forschritte der Geologie und Palaeontologie. Verlag von Gebrüder Borntraeger, Berlin 2:1-210
Wikipediahttps://en.wikipedia.org/wiki/Poposauridae

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Heptasuchus
genus
accepted (GBIF)
listed (PBDB)
1237 Ma
Middle Triassic
237 Ma
Middle Triassic
Lythrosuchus
genus
doubtful (GBIF)
listed (PBDB)
Poposaurus
genus
accepted (GBIF)
listed (PBDB)
20237 Ma
Middle Triassic
209 Ma
Late/Upper Triassic
Sillosuchus
genus
accepted (GBIF)
listed (PBDB)
1237 Ma
Middle Triassic
237 Ma
Middle Triassic

Synonymy List

YearName and Author
1923Poposauridae Nopcsa p. 126
1928Poposauridae Nopcsa p. 184
1934Poposauridae Huene p. 15
1937Poposauridae Roxo p. 65
1946Poposauridae Kuhn p. 66
1961Poposauridae Colbert
1966Poposauridae Kuhn p. 94
1966Poposauridae Romer p. 369
1970Poposauridae Steel p. 27
1977Poposauridae Galton p. 244
YearName and Author
1978Poposauridae Anderson and Cruickshank p. 31
1985Poposauridae Galton
1986Poposauridae Parrish and Carpenter p. 152
1988Poposauridae Carroll
1991Poposauridae Sereno p. 11
1993Poposauridae Parrish p. 290 fig. 1
1995Poposauridae Long and Murry p. 142
1997Poposauridae Alcober and Parrish
2007Poposauridae Weinbaum and Hungerbühler p. 132

References

Nopcsa B. F. (1923) Die Familien der Reptilien [The families of reptiles], Forschritte der Geologie und Palaeontologie. Verlag von Gebrüder Borntraeger, Berlin 2, 1-210
Nopcsa B. F. (1928) The genera of reptiles, Palaeobiologica 1, 163-188
Kuhn O. (1946) Das System der fossilen und rezenten Amphibien und Reptilien [The system of fossil and recent amphibians and reptiles], Bericht der Naturforschenden Gesellschaft in Bamberg 29, 49-67
Colbert E. H. (1961) The Triassic reptile, Poposaurus, Fieldiana: Geology 14 4, 59-78
Kuhn O. W. M. (1966) , Die Reptilien. System und Stammesgeschichte [The Reptiles. Systematics and Phylogeny.], 1-154
Romer A. S. (1966) , Vertebrate Paleontology, 3rd edition, 1-468
Steel R. (1970) Part 14. Saurischia, Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology. Gustav Fischer Verlag, Stuttgart, 1-87
Galton P. M. (1977) On Staurikosaurus pricei, an early saurischian dinosaur from the Triassic of Brazil, with notes on the Herrerasauridae and Poposauridae, Paläontologische Zeitschrift 31 3/4, 234-245
Galton P. M. (1985) The poposaurid thecodontian Teratosaurus suevicus v. Meyer, plus referred specimens mostly based on prosauropod dinosaurs, from the Middle Stubensandstein (Upper Triassic) of Nordwürttemberg, Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie) 116, 1-29
Parrish J. M., Carpenter K. (1986) A new vertebrate fauna from the Dockum Formation (Late Triassic) of eastern New Mexico, The Beginning of the Age of Dinosaurs: Faunal Change Across the Triassic–Jurassic Boundary. Cambridge University Press, Cambridge, 151-160
Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Sereno P. C. (1991) Basal archosaurs: phylogenetic relationships and functional implications, Journal of Vertebrate Paleontology Memoir 2 11 4, suppl., 1-53
Parrish J. M. (1993) Phylogeny of the Crocodylotarsi, with reference to archosaurian and crurotarsan monophyly, Journal of Vertebrate Paleontology 13 3, 287-308
Long R. A., Murry P. 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
Alcober O., Parrish J. M. (1997) A new poposaurid from the Upper Triassic of Argentina, Journal of Vertebrate Paleontology 17, 548-556
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., Palaeontologische Zeitschrift 81 2, 131-145
Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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