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Anchitherium clarencei

Mammalia - Perissodactyla - Equidae

Taxonomy
Anchitherium clarencei was named by Simpson (1932). Its type specimen is FSGS V5074, a mandible, and it is a 3D body fossil. Its type locality is Midway, which is in a Hemingfordian terrestrial horizon in the Torreya Formation of Florida.

It was synonymized subjectively with Anchitherium navasotae by Forsten (1975); it was recombined as Kalobatippus clarencei by MacFadden (1998).

Synonymy list
YearName and author
1932Anchitherium clarencei Simpson p. 32 figs. 18 - 19
1940Anchitherium clarenci Stirton p. 174
1991Anchitherium clarencei Albright
1991Anchitherium clarencei Bryant
1998Kalobatippus clarencei MacFadden
2001Anchitherium clarencei MacFadden
2009Anchitherium clarencei MacFadden

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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
subfamilyAnchitheriinae()
genusAnchitheriumvon Meyer 1844
speciesclarencei

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
G. G. Simpson 1932An anchitheriine horse about the size of A. agatense. Upper molars subquadrate, little transverse. M3 reduced, M3 not fully triangular. Proto-and metalophs strongly crested, sinuous. Molar hypostyles triangular, cingular, pitted, united by crest to hypocone. Faint vestigial external ribs on upper molars. No internal cingula.