Mammaliaformes Rowe 1988
Count: [g†g] 1c;24o;125f;1081g; ‡1o;6f;43g; †24o;301f;4057g;1s
   [crown] Class Mammalia Linnaeus, 1758 - mammals
  Count: [g†g] 24o;125f;1081g; ‡1o;6f;43g; †21o;294f;4034g;1s
     Subclass Theriiformes Rowe, 1988 see Division Theriiformes Rowe, 1988
    Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †21o;294f;4031g;1s
       Infraclass Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg, 1995 see Clade Holotheria Wible, Rougier, Novacek, McKenna & Dashzeveg 1995
      Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;277f;3936g;1s
         Superlegion Trechnotheria McKenna, 1975 see Clade Trechnotheria McKenna 1975
        Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;274f;3932g
           Legion Cladotheria McKenna, 1975 see Clade Cladotheria McKenna 1975
          Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †18o;269f;3910g
             Sublegion Zatheria McKenna, 1975 see Clade Zatheria McKenna 1975
            Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;262f;3884g
               Infralegion Tribosphenida McKenna, 1975 see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
              Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;258f;3877g
                 [crown] Supercohort Theria Parker & Haswell, 1897 - therians see Subclass Theria Parker & Haswell, 1897
                Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;256f;3874g
                   Cohort Placentalia Owen, 1837 - placentals
                  Count: [g†g] 17o;108f;1005g; ‡1o;5f;40g; †12o;218f;3610g
                     Magnorder Epitheria McKenna, 1975 see Cohort Placentalia Owen, 1837
                    Count: [g†g] 15o;103f;992g; ‡4f;34g; †12o;208f;3390g
                       Superorder Preptotheria McKenna, 1975
                      Count: [g†g] 15o;103f;992g; ‡4f;34g; †12o;204f;3358g
                         Grandorder Ungulata Linnaeus, 1766
                        Count: [g†g] 5o;29f;136g; ‡1f;9g; †9o;106f;1533g
                           Mirorder Eparctocyona McKenna, 1975
                          Count: [g†g] 2o;21f;122g; ‡2g; †3o;54f;939g
                             Order Cete Linnaeus, 1758 see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
                            Count: [g†g] 11f;40g; †18f;243g
                               Suborder †Acreodi Matthew, 1909 see Order Acreodi Matthew, 1909
                              Count: [†g] †3f;27g
                                 Family †Mesonychidae Cope, 1875
                                Count: [†g] †15g
                                   01 Genus †Yantanglestes Ideker & Yan, 1980
                                  Count: -
                                   02 Genus †Hukoutherium Chow, Chang, Wang & Ting, 1973
                                  Count: -
                                   03 Genus †Dissacusium Zhou, Zhang, Wang & Ding, 1977
                                  Count: -
                                   04 Genus †Ankalagon van Valen, 1980
                                  Count: -
                                   05 Genus †Sinonyx Zhou, Zhai, Gingerich & Chen, 1995
                                  Count: -
                                   06 Genus †Dissacus Cope, 1881
                                  Count: -
                                   07 Genus †Pachyaena Cope, 1874
                                  Count: -
                                   08 Genus †Jiangxia Zhang, Zheng & Ding, 1979
                                  Count: -
                                   09 Genus †Mongolonyx Szalay & Gould, 1966
                                  Count: -
                                   10 Genus †Harpagolestes Wortman, 1901
                                  Count: -
                                   11 Genus †Hessolestes Peterson, 1931
                                  Count: -
                                   12 Genus †Synoplotherium Cope, 1872
                                  Count: -
                                   13 Genus †Mesonyx Cope, 1872
                                  Count: -
                                   14 Genus †Guilestes Zheng & Chi, 1978
                                  Count: -
                                   15 Genus †Mongolestes Szalay & Gould, 1966
                                  Count: -