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Poposauroidea

Reptilia

Taxonomy
Poposauroidea was named by Nopcsa (1923). Its type is Poposaurus.

It was reranked as the unranked clade Poposauroidea by Weinbaum and Hungerbühler (2007), Nesbitt (2011) and Gauthier et al. (2011); it was reranked as the superfamily Poposauroidea by Huene (1934), Huene (1934) and Smith et al. (2024).

It was assigned to Orthopoda by Nopcsa (1928); to Ornithischia by Huene (1934) and Huene (1934); to Paracrocodylomorpha by Weinbaum and Hungerbühler (2007) and Nesbitt (2011); to Suchia by Gauthier et al. (2011); and to Pseudosuchia by Smith et al. (2024).

Synonymy list
YearName and author
1923Poposauroidea Nopcsa
1928Poposauroidea Nopcsa p. 184
1934Poposauroidea Huene p. 15
2007Poposauroidea Weinbaum and Hungerbühler p. 132
2011Poposauroidea Gauthier et al. p. 109
2011Poposauroidea Nesbitt p. 197 fig. 51
2024Poposauroidea Smith et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
—Pseudosuchia(Zittel 1890)
superfamilyPoposauroidea(Nopcsa 1923)
superfamilyPoposauroidea(Nopcsa 1923)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Superfm. †Poposauroidea Nopcsa 1923
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G. †Benggwigwishingasuchus Smith et al. 2024
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Unr. †Ctenosauriscidae Kuhn 1964
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G. †Arizonasaurus Welles 1947
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†Arizonasaurus babbitti Welles 1947
G. †Bromsgroveia Galton 1985
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†Bromsgroveia walkeri Galton 1985
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Invalid names: Cladeiodon lloydii Owen 1841 [synonym]
G. †Bystrowisuchus Sennikov 2012
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†Bystrowisuchus flerovi Sennikov 2012
G. †Ctenosauriscus Kuhn 1964
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†Ctenosauriscus koeneni Huene 1902
Invalid names: Ctenosaurus Huene 1902 [replaced]
G. †Hypselorhachis Charig 1967
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†Hypselorhachis mirabilis Charig 1967
G. †Xilousuchus Wu 1981
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G. †Lotosaurus Zhang 1975
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†Lotosaurus adentus Zhang 1975
G. †Mandasuchus Charig 1967
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†Mandasuchus tanyauchen Charig 1967
G. †Poposaurus Mehl 1915
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†Poposaurus gracilis Mehl 1915
†Poposaurus langstoni Long and Murry 1995
G. †Qianosuchus Li et al. 2006
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†Qianosuchus mixtus Li et al. 2006
Diagnosis
ReferenceDiagnosis
B. F. Nopcsa 1928incompletely known; vertebrae biplane; anterior part of ilium expanded downward; bipedal