Class [Mammalia] Linnaeus, 1758 - mammals
   Order Primates Linnaeus, 1758 - primates
     Suborder Prosimii Illiger, 1811 see Infraorder Strepsirrhini "Geoffroy Saint-Hilaire, 1812"
       Infraorder Lemuriformes Gregory, 1915
         Superfamily Lorisoidea Gray, 1821
           Family †Plesiopithecidae Simons & Rasmussen, 1994
             1 Genus †Plesiopithecus Simons, 1992