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Maraapunisaurus fragillimus

Reptilia - Rebbachisauridae

Taxonomy
Amphicoelias fragillimus was named by Cope (1878). Its type specimen is AMNH FR 5777 (lost), a set of vertebrae (Dorsal neural arch), and it is a 3D body fossil. Its type locality is Cope Quarry III, Cope's Nipple, which is in a Tithonian dry floodplain mudstone in the Morrison Formation of Colorado. It is the type species of Maraapunisaurus, Amphicoelias.

It was synonymized subjectively with Amphicoelias altus by McIntosh (1990) and Upchurch et al. (2004); it was considered a nomen dubium by Osborn and Mook (1919); it was recombined as Maraapunisaurus fragillimus by Carpenter (2018).

Synonymy list
YearName and author
1878Amphicoelias fragillimus Cope
1891Amphicoelias fragillimus Cope p. 43
1902Amphicoelias fragillimus Hay p. 486
1970Amphicoelias fragillimus Steel p. 80
1997Amphicoelias fragillium Carpenter p. 91
2006Amphicoelias fragillimus Carpenter p. 132
2006Amphicoelias fragillimus Chure et al. p. 236
2006Amphicoelias fragillimus Mateus p. 227
2006Amphicoelias fragillimus Royo-Torres et al. figs. Table S3
2018Maraapunisaurus fragillimus Carpenter

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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()
Eosuchia()
Neodiapsida
RankNameAuthor
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Eusaurischia
Sauropodomorpha(Huene 1932)
Massopoda
Sauropodiformes
Sauropoda()
Eusauropoda
Neosauropoda
Diplodocoidea()
familyRebbachisauridae
genusMaraapunisaurus
speciesfragillimus()

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
No diagnoses are available