Kingdom [Animalia] Linnaeus, 1758 - animals
Status: extant
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
  Status: extant
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
    Status: extant
       Subdivision Bilateralia
      Status: extant
         Phylum Chordata Bateson, 1885 - chordates
        Status: extant
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
          Status: extant
             Class Mammalia Linnaeus, 1758 - mammals
            Status: extant
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
              Status: extant
                 Superorder Protungulata
                Status: extant
                   Order †Condylarthra Cope, 1881
                  Status: fossil
                     Superfamily †Mesonychoidea
                    Status: fossil
                       Family †Mesonychidae Cope, 1875
                      Status: fossil
                         Genus †Mesonyx Cope, 1872
                        Status: fossil