Order Primates Linnaeus, 1758 - primates Semiorder Euprimates Hoffstetter, 1978 see Clade Euprimates Suborder Strepsirhini see Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812 Infraorder †Adapiformes Hoffstetter, 1977 ?Genus †Siamopithecus Chaimanee, Suteethorn, Jaeger & Ducrocq, 1997