Kingdom Animalia Linnaeus, 1758 - animals
Count: -
   Phylum Chordata Bateson, 1885 - chordates
  Count: -
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
    Count: -
       Class Mammalia Linnaeus, 1758 - mammals
      Count: -
         Grandorder Archonta Gregory, 1910
        Count: -
           Mirorder Primatomorpha Beard, 1991
          Count: -
             Order †Plesiadapiformes Simons & Tattersall, 1972 see Suborder Plesiadapiformes Simons & Tattersall, 1972
            Count: [†*] †9f;44g;97s
               Superfamily †Microsyopoidea Osborn & Wortman, 1892
              Count: [†*] †2f;16g;28s
                 Family †Microsyopidae Osborn, 1892
                Count: [†*] †9g;18s
                   Genus †Arctodontomys Gunnell, 1985
                  Count: [†*] †3s
                     †Arctodontomys wilsoni (Szalay, 1969)
                    Count: -