Order Primates Linnaeus, 1758 - primates
   Semiorder Euprimates Hoffstetter, 1978 see Clade Euprimates
     Suborder Strepsirhini see Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812
       Infraorder Lemuriformes Gregory, 1915
         Superfamily Indrioidea Burnett, 1828 see Superfamily Lemuroidea Gray, 1821
           Family Indriidae Burnett, 1828, orth. cons. - avahi, sifakas, and indri
             1 Genus Indri Geoffroy Saint-Hilaire & Cuvier, 1796 - indri
             2 Genus Propithecus Bennett, 1832 - sifakas
             3 Genus Avahi Jourdan, 1834 - avahi, woolly lemur