Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Infraclass Eutheria Gill, 1872
       Magnorder Boreoeutheria Springer & de Jong, 2001
         Superorder Euarchontoglires Murphy, Stanyon & O'Brien, 2001
           Order Primates Linnaeus, 1758 - primates
             Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812
               Infraorder Lemuriformes Gregory, 1915
                 Superfamily Lemuroidea Gray, 1821
                   1 Family Lepilemuridae Gray, 1870
                   2 Family ‡Megaladapidae Forsyth Major, 1893 - sportive lemurs, weasel lemurs, and koala lemurs
                   3 Family Lemuridae Gray, 1821 - large lemurs
                   4 Family ‡Archaeolemuridae Forsyth Major, 1896
                   5 Family ‡Palaeopropithecidae Tattersall, 1973
                   6 Family Indriidae Burnett, 1828, orth. cons. - avahi, sifakas, and indri