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 Dasyuromorphia Gill, 1872 see Order Dasyuromorphia Gill, 1872
                        Period: Early Miocene - Present [23.03 Mya - present]; Status: extant; Count: [g†g] 1f;14g; ‡1f;1g; †7g
                           Family Dasyuridae Goldfuss, 1820 - marsupial "mice" and "cats", and Tasmanian devil
                          Distribution: Australasia; Period: Early Miocene - Present [23.03 Mya - present]; Status: extant; Count: [g†g] 14g; †5g
                             Subfamily Dasyurinae Goldfuss, 1820
                            Status: extant; Count: [g†g] 13g; †5g
                               Genus Murexia Tate & Archbold, 1937 - short-haired marsupial "mice"
                              Status: extant; Count: -