Mammaliaformes Rowe 1988, nom. cl. inval. see Clade Mammaliaformes Rowe 1988 [Rowe 2020]
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 Anagalida Szalay & McKenna, 1971 see Order Anagalida Szalay & McKenna, 1971
                        Count: [g†g] 2o;27f;445g; ‡11g; †2o;34f;835g
                           Mirorder Duplicidentata "Illiger, 1811"
                          Count: [g†g] 1o;2f;12g; ‡1g; †1o;1f;58g
                             Order Lagomorpha Brandt, 1855 - lagomorphs
                            Count: [g†g] 2f;12g; ‡1g; †55g
                               Family Ochotonidae Thomas, 1897 - pikas
                              Count: [g†g] 1g; ‡1g; †24g
                                 01 Genus †Desmatolagus Matthew & Granger, 1923
                                Count: -
                                 02 Genus †Sinolagomys Bohlin, 1937
                                Count: -
                                 03 Genus †Piezodus Viret, 1929
                                Count: -
                                 04 Genus †Amphilagus Pomel, 1854
                                Count: -
                                 05 Genus †Austrolagomys Stromer, 1926
                                Count: -
                                 06 Genus †Marcuinomys Lavocat, 1951
                                Count: -
                                 07 Genus ‡Prolagus Pomel, 1853 - Sardinian pika
                                Count: -
                                 08 Genus †Ptychoprolagus Tobien, 1975
                                Count: -
                                 09 Genus †Heterolagus Crusafont Pairó, Villalta & Truyols, 1955
                                Count: -
                                 10 Genus †Lagopsis Schlosser, 1884
                                Count: -
                                 11 Genus †Titanomys von Meyer, 1843
                                Count: -
                                 12 Genus †Kenyalagomys MacInnis, 1953
                                Count: -
                                 13 Genus †Oreolagus Dice, 1917
                                Count: -
                                 14 Genus †Cuyamalagus Hutchison, 1974
                                Count: -
                                 15 Genus †Oklahomalagus Dalquest, Baskin & Schultz, 1996
                                Count: -
                                 16 Genus †Albertona López-Martínez, 1986
                                Count: -
                                 17 Genus †Eurolagus López-Martínez, 1977
                                Count: -
                                 18 Genus †Bellatona Dawson, 1961
                                Count: -
                                 19 Genus †Russellagus Storer, 1970
                                Count: -
                                 20 Genus †Gymnesicolagus Mein & Adrover, 1982
                                Count: -
                                 21 Genus †Hesperolagomys Clark, Dawson & Wood, 1964
                                Count: -
                                 22 Genus †Alloptox Dawson, 1961
                                Count: -
                                 23 Genus †Ochotonoides Teilhard de Chardin & Young, 1931
                                Count: -
                                 24 Genus Ochotona Link, 1795 - pikas
                                Count: -
                                 25 Genus †Paludotona Dawson, 1959
                                Count: -
                                 26 Genus †Pliolagomys Erbajeva, 1983
                                Count: -