Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Carnivora Bowdich, 1821 - carnivores
Suborder Caniformia Kretzoi, 1943
Family Ursidae Batsch, 1788 - bears
Genus Ursus Linnaeus, 1758 - black, brown, polar, sun, and sloth bears
Ursus arctos Linnaeus, 1758 - brown bear
Ursus arctos beringianus Middendorff, 1851