Merychippus insignis Leidy 1856 (horse)

Mammalia - Perissodactyla - Equidae

Alternative combinations: Merychippus (Merychippus) insignis, Protohippus (Merychippus) insignis, Protohippus insignis

Synonyms: Hipparion paniense Cope 1874, Hipparion paniensis Cope 1874, Hippotherium paniense Cope 1874, Merychippus (Merychippus) paniensis Cope 1874, Merychippus paniensis Cope 1874

Full reference: J. Leidy. 1856. Notices of Extinct Vertebrata Discovered by Dr. F. V. Hayden, during the Expedition to the Sioux Country under the Command of Lieut. G. K. Warren. Proceedings of the Academy of Natural Sciences of Philadelphia 8:311-312

Belongs to Merychippus according to B. J. MacFadden 1998

See also Alroy 2002, Cope 1874, Cope 1889, Cope 1893, Douglass 1908, Galbreath 1953, Gidley 1907, Hay 1902, Henshaw 1942, Kelly 1995, Leidy 1856, Leidy 1857, Macdonald 1992, Matthew 1909, Osborn 1918, Scott 1895, Skinner et al. 1977 and Stirton 1940

Sister taxa: Merychippus (Merychippus), Merychippus (Protohippus), Merychippus brevidontus, Merychippus calamarius, Merychippus californicus, Merychippus coloradense, Merychippus eohipparion, Merychippus eoplacidus, Merychippus gunteri, Merychippus labrosus, Merychippus missouriensis, Merychippus patruus, Merychippus primus, Merychippus proparvulus, Merychippus quartus, Merychippus quintus, Merychippus relictus, Merychippus republicanus, Merychippus sejunctus, Merychippus seversus, Merychippus stevensi

Type specimens:

  • Merychippus insignis: Its type locality is Niobrara River (coll. Hayden 1857), which is in a Miocene terrestrial horizon in the Loop Fork Formation of Nebraska.
  • Merychippus paniensis: AMNH 8249, a tooth ( right upper molar, M1).

Ecology: ground dwelling grazer-browser


• Miocene of United States (21: Nebraska, South Dakota, Texas, Wyoming collections)

Total: 21 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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