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Mamenchisauridae (mamenchisaurid)

Reptilia - Mamenchisauridae

Synonyms
Synonymy list
YearName and author
1965Mamenchisauridae Chao p. 36
1972Mamenchisauridae Young and Chao p. 2
1984Mamenchisauridae Dong and Tang
1988Mamenchisauridae He et al. p. 6
1990Mamenchisaurinae McIntosh p. 56
1996Mamenchisauridae Zhang and Chen
1997Mamenchisauridae McIntosh p. 657
1998Mamenchisauridae Dong p. 84
2001Mamenchisauridae Tang et al. p. 14
2002Mamenchisauridae Ouyang and Ye p. 90
2002Omeisauridae Wilson p. 240 fig. 13
2008Omeisauridae Allain and Aquesbi p. 403
2010Mamenchisauridae Suteethorn et al.
2011Mamenchisauridae Sekiya
2013Mamenchisauridae Suteethorn et al. p. 461
2015Mamenchisauridae Xing et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
RankNameAuthor
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Eusaurischia
Sauropodomorpha(Huene 1932)
Massopoda
Sauropodiformes
Sauropoda()
Eusauropoda
familyMamenchisauridae
familyMamenchisauridae

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.

Diagnosis
ReferenceDiagnosis
C.-C. Young and H. C. Chao 1972Extremely long cervical region (19 vertebrae); dorsal, sacral, and caudal vertebrae short and few in number (4 sacral vertebrae); massive and long cervical ribs; pleurocoels not well developed on dorsal vertebrae; anterior dorsal vertebrae with bifid neural spine; medial caudal vertebrae with bifurcated haemal spines; anterior caudal vertebrae procoelous; centrally positioned pubic peduncle on ilium.
S. Suteethorn et al. 2013Posterior cervical vertebrae of mamenchisaurids can be diagnosed by their bifid neural spine with a U−shaped cleft and no median tubercle; the centrum and neural spine are entirely filled with numerous small pneumatic camellae (cancellous inner structure); the centra show large pleurocoels with successive generations of smaller chambers.