Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
                 Order Primates Linnaeus, 1758 - primates
                   Suborder Prosimiae Milne Edwards see Infraorder Strepsirrhini "Geoffroy Saint-Hilaire, 1812"
                     Infraorder Lemuriformes Gregory, 1915
                       Family Lemuridae Gray, 1821 - large lemurs
                         Subfamily Lemurinae Gray, 1821 see Family Lemuridae Gray, 1821
                           Genus Hapalemur Geoffroy Saint-Hilaire, 1851 - gentle lemurs
                             Hapalemur simus Gray, 1871 - broad-nosed gentle lemur see Prolemur simus (Gray, 1871)