Equus excelsus Leidy 1858 (horse)

Mammalia - Perissodactyla - Equidae

Alternative combination: Allozebra excelsus

Synonyms: Asinus aguascalentensis Mooser 1959, Equus aguascalientensis Mooser 1959, Onager arellanoi Mooser 1959, Onager hibbardi Mooser 1959

Full reference: J. Leidy. 1858. Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, Collected during the Exploring Expedition of 1857, in Nebraska, under the Command of Lieut. G. K. Warren, U. S. Top. Eng., by Dr. F. V. Hayden, Geologist to the Expedition. Proceedings of the Academy of Natural Sciences of Philadelphia 10:15-89

Belongs to Equus according to E. D. Cope 1893

See also Gidley 1901, Hay 1902, Kurten and Anderson 1980, Leidy 1858, Leidy 1873, Mooser and Dalquest 1975 and Schultz and Howard 1935

Sister taxa: Equus (Amerhippus), Equus (Dolichohippus), Equus (Hemionus), Equus (Hesperohippus), Equus (Hippotigris), Equus (Sussemionus), Equus africanus, Equus alaskae, Equus asinus, Equus australis, Equus caballus, Equus calobatus, Equus capensis, Equus coliemensis, Equus complicatus, Equus conversidens, Equus fraternus, Equus fromanius, Equus giganteus, Equus hatcheri, Equus holmesi, Equus idahoensis, Equus intermedius, Equus jubatus, Equus laurentius, Equus leidyi, Equus major, Equus mexicanus, Equus nalaikhaensis, Equus nevadanus, Equus niobrarensis, Equus nobisi, Equus pacificus, Equus parastylidens, Equus pectinatus, Equus przewalskii, Equus pseudaltidens, Equus quagga, Equus santaeelenae, Equus scotti, Equus semiplicatus, Equus stenonis, Equus tabeti, Equus taeniopus, Equus yunnanensis, Equus zebra, Equus (Asinus) kiang, Asinus africanus, Onager onager, Plesippus francescana, Equus (Plesippus) crenidens

Type specimens:

  • Equus excelsus: Its type locality is Niobrara River (coll. Hayden 1857), which is in a Miocene terrestrial horizon in the Loop Fork Formation of Nebraska.
  • Asinus aguascalentensis: FC 21-32, a set of teeth.
  • Onager arellanoi:
  • Onager hibbardi:

Ecology: ground dwelling grazer


• Quaternary of United States (5: Nebraska, New Mexico, Oklahoma, Texas collections)

• Pliocene of Mexico (1)

• Miocene of United States (1: Nebraska)

Total: 7 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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