Class Mammalia Linnaeus, 1758 - mammals
   Order Primates Linnaeus, 1758 - primates
     Family Indridae Burnett, 1828 - avahi, sifakas, and indri see Family Indriidae Burnett, 1828, orth. cons.
       1 Genus Avahi Jourdan, 1834 - avahi, woolly lemur
       2 Genus Indri Geoffroy Saint-Hilaire & Cuvier, 1796 - indri
       3 Genus Propithecus Bennett, 1832 - sifakas