Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Mammalia Linnaeus, 1758 - mammals
         Grandorder Archonta Gregory, 1910
           Mirorder Primatomorpha Beard, 1991
             Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
               Superfamily †Microsyopoidea Osborn & Wortman, 1892
                 Family †Palaechthonidae Szalay, 1969
                   1 Genus †Palaechthon Gidley, 1923
                   2 Genus †Plesiolestes Jepsen, 1930b
                   3 Genus †Talpohenach Kay & Cartmill, 1977
                   4 Genus †Torrejonia Gazin, 1968
                   5 Genus †Palenochtha Simpson, 1937
                   6 Genus †Anasazia Van Valen, 1994
                   7 Genus †Premnoides Gunnell, 1989