Class [Mammalia] Linnaeus, 1758 - mammals
   Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
     Superfamily †Microsyopoidea Osborn & Wortman, 1892
       Family †Palaechthonidae Szalay, 1969
         Genus †Plesiolestes Jepsen, 1930b
           1 †Plesiolestes problematicus (Jepsen, 1930)
           2 †Plesiolestes sirokyi