Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
           Class Mammalia Linnaeus, 1758 - mammals
             Subclass Theria Parker & Haswell, 1897
               Theria of Metatherian-Eutherian grade
                 Infraclass Eutheria Gill, 1872
                   Order Carnivora Bowdich, 1821 - carnivores
                     Superfamily Arctoidea Flower, 1869 see Infraorder Arctoidea Flower, 1869
                       1 Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
                       2 Family Phocidae Gray, 1821 - true seals
                       3 Family Canidae Batsch, 1788 - dogs, wolves, coyotes, jackals, and foxes
                       4 Family Procyonidae Gray, 1825 - raccoons and relatives
                       5 Family †Amphicyonidae Haeckel, 1866
                       6 Family Ursidae Batsch, 1788 - bears