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Merychippus labrosus

Mammalia - Perissodactyla - Equidae

Taxonomy
Protohippus labrosus was named by Cope (1874). Its type specimen is AMNH 8266, a mandible (a composite of two jaw fragments, the symphysis and the (right) ramus belonging certainly to different indi- viduals and probably to distinct species. The symph), and it is a 3D body fossil.

It was synonymized subjectively with Protohippus perditus by Matthew (1899); it was recombined as Merychippus labrosus by Hay (1902), Cope and Matthew (1915) and Osborn (1918); it was considered a nomen dubium by Gidley (1907), Galbreath (1953) and Macdonald (1992).

Synonymy list
YearName and author
1874Protohippus labrosus Cope p. 13
1893Protohippus labrosus Cope p. 26
1902Merychippus labrosus Hay
1915Merychippus labrosus Cope and Matthew
1918Merychippus labrosus Osborn p. 109 figs. Text Fig. 84

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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
Synapsida()
Therapsida()
RankNameAuthor
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
orderPerissodactyla()
suborderLophodontomorpha
infraorderEuperissodactyla
Hippomorpha
superfamilyEquoidea
familyEquidae
subfamilyEquinaeSteinmann and Döderlein 1890
genusMerychippus
specieslabrosus()

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