Order Primates Linnaeus, 1758 - primates Semiorder †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972 Superfamily †Plesiadapoidea Trouessart, 1897 Family †Saxonellidae Russell, 1964 [monotypic] Genus †Saxonella Russell, 1964