Orohippus sylvaticus Leidy 1870 (horse)

Mammalia - Perissodactyla - Equidae

Alternative combinations: Lophiotherium sylvaticum, Orotherium sylvaticum, Orotherium sylvaticus, Pachynolophus sylvaticus, Pliolophus sylvaticus

Synonyms: Epihippus uintanus Marsh 1872, Orohippus uintanus Marsh 1872, Orotherium uintanum Marsh 1872, Orotherium vintanum Marsh 1872, Pachynolophus uintanus Marsh 1872, Pliolophus uintanus Marsh 1872

Full reference: J. Leidy. 1870. [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, November 15th, 1870]. Proceedings of the Academy of Natural Sciences of Philadelphia 22(3):125-127

Belongs to Orohippus according to B. J. MacFadden 1998

See also Cope 1873, Cope 1875, Gazin 1976, Granger 1908, Hay 1902, Kitts 1957, Leidy 1870, Leidy 1873, Marsh 1872 and Stirton 1940

Sister taxa: Orohippus (Aminippus), Orohippus agilis, Orohippus major, Orohippus progressus, Orohippus proteros, Orohippus pumilus

Type specimens:

  • Orohippus sylvaticus: USNM 3753, a mandible (fragment of left ramus with p4-m3 )
  • Orotherium uintanum:

Ecology: ground dwelling browser


• Eocene of United States (3: Colorado, Wyoming collections)

Total: 3 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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