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Ophiacodon navajovicus

Ophiacodontidae

Taxonomy
Dimetrodon navajovicus was named by Case (1907). Its type specimen is AMNH 4777, a partial skeleton (postcrania), and it is a 3D body fossil. Its type locality is El Cobre Canyon (Cutler Formation), which is in a Virgilian fluvial siliciclastic in the Cutler Formation of New Mexico. It is the type species of Arribasaurus.

It was recombined as Arribasaurus navajovicus by Hay (1930); it was recombined as Ophiacodon navajovicus by Romer and Price (1940) and Reisz (1986).

Synonymy list
YearName and author
1907Dimetrodon navajovicus Case
1930Arribasaurus navajovicus Hay p. 49
1940Ophiacodon navajovicus Romer and Price pp. 18, 233
1986Ophiacodon navajovicus Reisz p. 69

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
suborderEupelycosauria
familyOphiacodontidaeNopsca 1923
genusOphiacodonMarsh 1878
speciesnavajovicus()

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.

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Diagnosis
No diagnoses are available