Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Order Carnivora Bowdich, 1821 - carnivores
Suborder Caniformia Kretzoi, 1943
Family Canidae Batsch, 1788 - dogs, wolves, coyotes, jackals, and foxes
Genus Lycalopex Burmeister, 1854 - hoary fox
Lycalopex gymnocercus (Fischer, 1814) - pampas fox
Lycalopex gymnocercus gracilis (Burmeister, 1861)