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
               Genus Felis Linnaeus, 1758 - small cats, lynxes, and cougar
                 1 Felis Leo Linnaeus, 1758 see Panthera leo (Linnaeus, 1758)
                 2 Felis Tigris Linnaeus, 1758 see Panthera tigris (Linnaeus, 1758)
                 3 Felis Pardus Linnaeus, 1758 see Panthera pardus (Linnaeus, 1758)
                 4 Felis Onca Linnaeus, 1758 see Panthera onca (Linnaeus, 1758)
                 5 Felis Pardalis Linnaeus, 1758 - ocelot see Felis pardalis Linnaeus, 1758
                 6 Felis Catus Linnaeus, 1758 - domestic cat
                 7 Felis Lynx Linnaeus, 1758 see Felis lynx xxxLinnaeus, 1758