Alternative combinations: Hyracotherium major, Pliolophus major
Full reference: O. C. Marsh. 1874. Notice of new equine mammals from the Tertiary formation. American Journal of Science 7(39):247-258
Type specimen: YPM 11270, a maxilla (fragment of right maxilla with M2 and M3, and loose M2). Its type locality is Millersville, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.
Ecology: ground dwelling browser
Distribution: found only at Millersville
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.