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Anchitherium australe

Mammalia - Perissodactyla - Equidae

Taxonomy
Anchitherium australe was named by Leidy (1873) [or "australe"]. It is a 3D body fossil.

It was recombined as Mesohippus australis by Roger (1896) and Trouessart (1898); it was synonymized subjectively with Anchippus texanus by Matthew (1899); it was recombined as Miohippus australis by Hay (1902); it was recombined as Hypohippus australis by Osborn (1904); it was recombined as Parahippus australis by Osborn (1918), Hay (1930) and Schlaikjer (1937); it was synonymized subjectively with Hypohippus affinis by Forsten (1975); it was recombined as Kalobatippus australis by MacFadden (1998); it was considered a nomen dubium by Macdonald (1992); it was corrected as Anchitherium australis by Leidy (1873), Stirton (1940) and MacFadden (2001).

Synonymy list
YearName and author
1873Anchitherium australis Leidy
1873Anchitherium australe Leidy p. 250
1896Mesohippus australis Roger
1898Mesohippus australis Trouessart
1902Miohippus australis Hay p. 613
1904Hypohippus australis Osborn p. 168
1918Parahippus australis Osborn p. 85 fig. 60
1930Parahippus australis Hay
1937Parahippus australis Schlaikjer p. 271
1940Anchitherium australis Stirton p. 174
1998Kalobatippus australis MacFadden
2001Anchitherium australis 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
speciesaustrale

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
H. F. Osborn 1918(1) An oblique valley extends from the inner side and ends in a foot-like expansion [parastyle]; (2) back of the center of the triturating surface a crescentic enamel lake [post-fossette]; (3) devoid of cement; (4) inner and intermediate lobes [protocone, hypocone] somewhat fuller than in Anchitherium; (5) resembling Anchippus in other features but differing from both AnchippWt and ParahippWt in the absence of the crochet [a fold may be worn off]. The tooth also resembles the type of HypohippWt in (6) the uncertainty as to its generic relationship. Leidy refers it to Anchitherium.