Mammaliaformes Rowe 1988, nom. cl. inval. see Clade Mammaliaformes Rowe 1988 [Rowe 2020]
Period: Late Triassic - Present [237 Mya - present]; Status: extant; Count: [g†g] 1c;24o;125f;1081g; ‡1o;6f;43g; †24o;301f;4057g;1s
   [crown] Class Mammalia Linnaeus, 1758 - mammals
  Period: Late Triassic - Present [237 Mya - present]; Status: extant; Count: [g†g] 24o;125f;1081g; ‡1o;6f;43g; †21o;294f;4034g;1s
     Subclass Theriiformes Rowe, 1988 see Division Theriiformes Rowe, 1988
    Period: Late Triassic - Present [237 Mya - present]; Status: extant; 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
      Period: Late Triassic - Present [237 Mya - present]; Status: extant; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;277f;3936g;1s
         Superlegion Trechnotheria McKenna, 1975 see Clade Trechnotheria McKenna 1975
        Period: Early Jurassic - Present [201.3 Mya - present]; Status: extant; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †20o;274f;3932g
           Legion Cladotheria McKenna, 1975 see Clade Cladotheria McKenna 1975
          Period: Middle Jurassic - Present [174.1 Mya - present]; Status: extant; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †18o;269f;3910g
             Sublegion Zatheria McKenna, 1975 see Clade Zatheria McKenna 1975
            Period: Middle Jurassic - Present [174.1 Mya - present]; Status: extant; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;262f;3884g
               Infralegion Tribosphenida McKenna, 1975 see Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001
              Period: Early Cretaceous - Present [145 Mya - present]; Status: extant; 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
                Period: Early Cretaceous - Present [145 Mya - present]; Status: extant; Count: [g†g] 22o;123f;1078g; ‡1o;6f;43g; †16o;256f;3874g
                   Cohort Marsupialia Jameson, 1818 - marsupials
                  Period: Early Cretaceous - Present [145 Mya - present]; Status: extant; Count: [g†g] 5o;15f;73g; ‡1f;3g; †2o;28f;237g
                     Magnorder Australidelphia Szalay, 1982
                    Period: Early Paleocene - Present [66 Mya - present]; Status: extant; Count: [g†g] 3o;13f;56g; ‡1f;3g; †1o;9f;93g
                       Superorder Eometatheria Simpson, 1970
                      Period: Late Oligocene - Present [28.1 Mya - present]; Status: extant; Count: [g†g] 3o;12f;55g; ‡1f;3g; †1o;9f;87g
                         Grandorder Syndactyli Gill, 1871
                        Period: Late Oligocene - Present [28.1 Mya - present]; Status: extant; Count: [g†g] 2o;10f;40g; ‡2g; †8f;79g
                           Order Diprotodontia Owen, 1866
                          Period: Late Oligocene - Present [28.1 Mya - present]; Status: extant; Count: [g†g] 8f;34g; †8f;77g
                             Superfamily Vombatoidea Burnett, 1830 see Suborder Vombatiformes Burnett, 1830
                            Status: extant; Count: -
                               Family Vombatidae Burnett, 1830 - wombats
                              Distribution: Australasia/Australia; Period: Middle Miocene - Present [15.97 Mya - present]; Status: extant; Count: [g†g] 2g; †4g
                                 Genus †Rhizophascolonus Stirton, Tedford & Woodburne, 1967
                                Status: fossil; Count: -