Class Mammalia Linnaeus, 1758 - mammals
   Order Carnivora Bowdich, 1821 - carnivores
     Family Ursidae Batsch, 1788 - bears
       Subfamily Ursinae Batsch, 1788
         1 Genus Helarctos Horsfield, 1825 - Malayan sun bear
         2 Genus Melursus Meyer, 1793 - sloth bear
         3 Genus Tremarctos Gervais, 1855 - spectacled bear
         4 Genus Ursus Linnaeus, 1758 - black, brown, polar, sun, and sloth bears