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Eohippus cristonensis

Mammalia - Perissodactyla - Equidae

Taxonomy
Orotherium cristonense was named by Cope (1877).

It was recombined as Pliolophus cristonensis by Cope (1884) and Hay (1902); it was recombined as Hyracotherium cristonense by Wortman (1896), Matthew (1899) and Merrill (1907); it was recombined as Eohippus cristonensis by Loomis (1907), Granger (1908), Hay (1930) and Stirton (1940); it was synonymized subjectively with Hyracotherium angustidens by Kitts (1956); it was synonymized subjectively with Hyracotherium vasacciense by Gingerich (1991).

Synonymy list
YearName and author
1877Orotherium cristonense Cope
1884Pliolophus cristonensis Cope
1896Hyracotherium cristonense Wortman p. 102 figs. 11, 12
1899Hyracotherium cristonense Matthew
1902Pliolophus cristonensis Hay
1907Eohippus cristonensis Loomis
1907Hyracotherium cristonense Merrill
1908Eohippus cristonensis Granger
1930Eohippus cristonensis Hay
1940Eohippus cristonensis Stirton

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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
genusEohippus
speciescristonensis(Cope 1877)

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