Phenacodus matthewi (extinct)
Found in one sample
United States: Shotgun (Carnegie Museum) (Middle Palaeocene)
See also Phenacodus, Phenacodus bisonensis, Phenacodus grangeri, Phenacodus intermedius, Phenacodus lemoinei, Phenacodus magnus, Phenacodus sp., Phenacodus teilhardi, Phenacodus vortmani