Guloninae

The wolverine ( , ; Gulo gulo), also called the carcajou or quickhatch (from East Cree, kwiihkwahaacheew), is the largest land-dwelling member of the family Mustelidae. It is a muscular carnivore and a solitary animal. The wolverine has a reputation for ferocity and strength out of proportion to its size, with the documented ability to kill prey many times larger than itself.

The tayra (Eira barbara) is an omnivorous animal from the mustelid family, native to the Americas. It is the only species in the genus Eira.

Guloninae is a subfamily of the mammal family Mustelidae distributed across Eurasia and the Americas. It includes martens, fishers, the tayra, and the wolverine. These genera were formerly included within a paraphyletic definition of the mustelid subfamily Mustelinae.

Gulo is a genus of carnivoran mammals in the family Mustelidae. It contains one extant species, the wolverine (G. gulo), as well as several extinct ones. Fossil evidence suggests that this genus appeared in North America and later spread to Eurasia during the Pliocene. Diagnostic traits include a strongly reduced P2, a robust P4 with three roots, and upper molars smaller than in other gulonines. Overall, the teeth are adapted for hypercarnivory.

thumb|Plesiogulo marshalli Plesiogulo is a genus of prehistoric carnivore that lived from the Miocene to the Pliocene of Africa, Eurasia, and North America. An ancestral relationship to the wolverine (Gulo gulo) was once suggested, but it is no longer considered likely. However, some authorities still consider it a member of the Guloninae.