Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     naturalia - natural bodies
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Mammalia Linnaeus, 1758 - mammals
           Quadrupedia Linnaeus, 1758 see Class Mammalia Linnaeus, 1758
             Order Feræ Linnaeus, 1758 see Grandorder Ferae Linnaeus, 1758
               10 Genus Phoca Linnaeus, 1758 - harbor, ringed, harp, and ribbon seals
               11 Genus Canis Linnaeus, 1758 - dogs, wolves, coyotes, and jackals
               12 Genus Felis Linnaeus, 1758 - small cats, lynxes, and cougar
               13 Genus Viverra Linnaeus, 1758 - oriental civets
               14 Genus Muſtela Linnaeus, 1758 - weasels, ermines, stoats, minks, ferrets, and polecats
               15 Genus Urſus Linnaeus, 1758 - black, brown, polar, sun, and sloth bears