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
               1 [Lycalopex gymnocercus gymnocercus] (Fischer, 1814)
               2 Lycalopex gymnocercus antiquus (Ameghino, 1889)
               3 Lycalopex gymnocercus domeykoanus (Philippi, 1901)
               4 Lycalopex gymnocercus gracilis (Burmeister, 1861)
               5 Lycalopex gymnocercus maullinicus (Philippi, 1903)