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 Genus †Plesiopithecus Simons, 1992