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
Type specimen: AMNH 8350, a set of teeth (two upper molars)
Ecology: ground dwelling grazer
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.