Hyrachyus nanus Marsh 1871 (odd-toed ungulate)

Mammalia - Perissodactyla - Hyrachyidae

Alternative combination: Dilophodon nanus

Full reference: O. C. Marsh. 1871. Notice of some new fossil mammals from the Tertiary Formation. American Journal of Science 2(7):35-44

Belongs to Hyrachyus according to J. Leidy 1873

Sister taxa: Hyrachyus crista, Hyrachyus eximius, Hyrachyus lunanensis, Hyrachyus metalophus, Hyrachyus minor, Hyrachyus modestus, Hyrachyus neimongoliensis, Hyrachyus paradoxus, Hyrachyus tongi, Chasmotherium depereti

Type specimen: YPM 11080, a maxilla (fragments of both upper jaws with all the cheek-teeth represented on the right side). Its type locality is Grizzly Buttes, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.

Ecology: ground dwelling browser

Distribution:

• Eocene of United States (2: Wyoming collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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