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Gravisauria

Reptilia -

Synonymy list
YearName and author
2008Gravisauria Allain and Aquesbi p. 400

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
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()
Gravisauria
Gravisauria

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
R. Allain and N. Aquesbi 2008Gravisauria is a node-based taxon defined as the most recent common ancestor of Tazoudasaurus and Saltasaurus Bonaparte & Powell, 1980 and all its descendants. This definition encompasses the older definition of Sauropoda (McIntosh 1990). Gravisauria is diagnosed by two unambiguous and non-homoplastic synapomorphies: the dorsal neural spines which are broader transversely than anteroposteriorly, and the asymmetry of the femoral distal condyles, with a broader tibial condyle.