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Pentacemylus progressus Peterson 1931 (even-toed ungulate)

Osteichthyes - Artiodactyla - Homacodontidae

PaleoDB taxon number: 50101

Full reference: O. A. Peterson. 1931. New species from the Oligocene of the Uinta. Annals of Carnegie Museum 21(2):61-78

Belongs to Pentacemylus according to J. M. Theodor et al. 2007

Sister taxon: Pentacemylus leotensis

Type specimen: CM 11865, a set of teeth (Upper molars M^ and M^ and lower teeth, including Mi, M2, and part of P4). Its type locality is Leota Ranch, which is in an Uintan terrestrial horizon in the Uinta Formation of Utah.

Ecology: ground dwelling herbivore

Average measurements (in mm): m1 6.27 x 4.67