Order Primates Linnaeus, 1758 - primates Semiorder †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972 Superfamily †Plesiadapoidea Trouessart, 1897 1 Family †Plesiadapidae Trouessart, 1897 2 Family †Carpolestidae Simpson, 1935 3 Family †Saxonellidae Russell, 1964 [monotypic]