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.
       Genus Indri Geoffroy Saint-Hilaire & Cuvier, 1796 - indri
         1 Indri indri (Gmelin, 1788) - indri