Class [Mammalia] Linnaeus, 1758 - mammals
   Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
     Superfamily †Plesiadapoidea Trouessart, 1897
       Family †Saxonellidae Russell, 1964
         Genus †Saxonella Russell, 1964
           †Saxonella naylori Fox, 1989