Mammalia - Theriiformes - Arctocyonidae

Full reference: L. M. Van Valen. 1978. The beginning of the Age of Mammals. Evolutionary Theory 4:45-80

Belongs to Protungulatum according to L. M. Van Valen 1978

Sister taxa: Protungulatum coombsi, Protungulatum donnae, Protungulatum gorgun, Protungulatum mckeeveri

Type specimen: UMVP 1456, a mandible (left mandible with m1-3). Its type locality is Purgatory Hill, which is in a Puercan terrestrial horizon in the Tullock Formation of Montana.

Ecology: ground dwelling omnivore