Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Carnivora Bowdich, 1821 - carnivores
Suborder Caniformia Kretzoi, 1943
Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
Subfamily Mustelinae Batsch, 1788 - weasels
Genus Gulo Pallas, 1780 [monotypic] - wolverine
Gulo gulo (Linnaeus, 1758) - wolverine
Gulo gulo albus (Kerr, 1792)