Mammalia - Perissodactyla - Equidae
Alternative combinations: Griphippus retrusus, Hipparion retrusum, Hippotherium retrusum, Nannippus retrusus, Neohipparion retrusum, Protohippus retrusus
Full reference: E. D. Cope. 1889. A review of the North American species of Hippotherium. Proceedings of the American Philosophical Society 26(130):429-458
Belongs to Pseudhipparion according to B. J. MacFadden 1998
See also Cope 1889, Gidley 1907, Hay 1902, Kelly and Lander 1988, Macdonald 1992, Matthew 1909, McGrew and Meade 1938, Merriam 1917, Osborn 1918, Stirton 1940, Webb 1969 and Webb and Hulbert 1986
Sister taxa: Pseudhipparion curtivallum, Pseudhipparion gratum, Pseudhipparion hessei, Pseudhipparion simpsoni, Pseudhipparion skinneri
Type specimen: AMNH 8350, a set of teeth (two upper molars)
Ecology: ground dwelling grazer
Distribution:
• Miocene of United States (28: Nebraska, South Dakota, Wyoming collections)
Total: 28 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.