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Omphalosaurus nevadanus

Reptilia - Omphalosauridae

Taxonomy
Omphalosaurus nevadanus was named by Merriam (1906). Its type specimen is UCMP and is a 3D body fossil. Its type locality is American Canyon (UCMP/Stanford), which is in a Triassic marine limestone in the Prida Formation of Nevada. It is the type species of Omphalosaurus.

Synonymy list
YearName and author
1906Omphalosaurus nevadanus Merriam p. 72 fig. 1
1998Omphalosaurus nevadanus Sander and Faber p. 155
2003Omphalosaurus nevadanus Sander and Faber p. 802
2010Omphalosaurus nevadanus Maisch

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
RankNameAuthor
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Ichthyosauromorpha
Ichthyosauriformes
Ichthyopterygia(Owen 1840)
Eoichthyosauria
Ichthyosauria(de Blainville 1835)
familyOmphalosauridaeMerriam 1906
genusOmphalosaurusMerriam 1906
speciesnevadanus

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
P. M. Sander and C. Faber 1998Differs from the other two species in the rounded posterior margin of the dentary symphysis. Differs from O. nettarhynchus in its much larger size and its much greater number of teeth.