Class [Mammalia] Linnaeus, 1758 - mammals Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972 Superfamily †Plesiadapoidea Trouessart, 1897 Family †Carpolestidae Simpson, 1935 Genus †Elphidotarsius Gidley, 1923 †Elphidotarsius wightoni Fox, 1984