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 Indriidae Burnett, 1828, orth. cons. - avahi, sifakas, and indri
                         Genus Propithecus Bennett, 1832 - sifakas
                           Propithecus diadema Bennett, 1832 - diadem sifaka
                             1 [Propithecus diadema diadema]ᵀ Bennett, 1832
                             2 Propithecus diadema perrieri Lavauden, 1931 see Propithecus perrieri Lavauden, 1931