Mammalia - Carnivora - Ursidae
Parent taxon: Ursidae according to E. Trajano and H. Ferrarezzi 1995
See also Bjork 1970, Kurten and Anderson 1980, Schubert and Kaufmann 2003, Soibelzon et al. 2008 and Tedford and Martin 2001
Sister taxa: Agriotheriinae, Ailuropodinae, Amphicynodontinae, Harpaleocyon, Hemicyon, Hemicyoninae, Metarctos, Myadina, Phoberocyoninae, Proarctotherium, Subparictidae, Taxina, Thaumastocyon, Ursinae, Ursulus, Zaragocyon
Subtaxa: Arctodus Arctotherium Plionarctos Tremarctos
Ecology: ground dwelling herbivore-carnivore
Distribution:
• Quaternary of Argentina (5 collections), Bolivia (4), Brazil (5), Canada (3: British Columbia, Saskatchewan, Yukon), Chile (1), France (4), Mexico (4), United States (77: Alabama, Alaska, California, Florida, Georgia, Idaho, Indiana, Kansas, Maryland, Mississippi, Missouri, Montana, Nebraska, Nevada, New Mexico, Ohio, Oregon, Pennsylvania, South Carolina, South Dakota, Texas, Utah, Virginia, Wyoming), Venezuela (4)
• Blancan of El Salvador (1), Mexico (1), United States (13: Arizona, California, Florida, Idaho, New Mexico, Washington)
• Hemphillian of United States (7: California, Florida, Indiana, Nebraska, Oregon, Tennessee)
Total: 129 collections including 135 occurrences