Mammalia - Theriiformes - Arctocyonidae

Full reference: R. E. Sloan and L. Van Valen. 1965. Cretaceous mammals from Montana. Science 148(3667):220-227

Parent taxon: Arctocyonidae according to R. Tabuce et al. 2011

Sister taxa: Arctocyon, Arctocyonides, Arctocyoninae, Baioconodon, Carcinodon, Chriacus, Colpoclaenus, Desmatoclaenus, Deuterogonodon, Heteroborus, Hyodectes, Karakia, Lambertocyon, Landenodon, Loxolophinae, Loxolophus, Mentoclaenodon, Mimotricentes, Oxyprimus, Princetonia

Subtaxa: Protungulatum coombsi, Protungulatum donnae, Protungulatum gorgun, Protungulatum mckeeveri, Protungulatum sloani

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Type: Protungulatum donnae

Ecology: ground dwelling omnivore