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 Primates Linnaeus, 1758 - primates
               Genus Lemur Linnaeus, 1758 - ring-tailed lemur
                 1 Lemur tardigradus Linnaeus, 1758 see Loris tardigradus (C. Linnaeus, 1758)
                 2 Lemur Catta Linnaeus, 1758 - ring-tailed lemur
                 3 Lemur volans Linnaeus, 1758 see Cynocephalus volans (C. Linnaeus, 1758)