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
           1 Family Indriidae Burnett, 1828, orth. cons. - avahi, sifakas, and indri
           2 Family ‡Palaeopropithecidae Tattersall, 1973
           3 Family ‡Archaeolemuridae Forsyth Major, 1896
           4 Family Lepilemuridae Gray, 1870 [monotypic]
           5 Family Daubentoniidae Gray, 1863 [monotypic] - aye-ayes