Mammaliaformes Rowe 1988 [nom. cl. nov.]
   [crown] Class Mammalia Linnaeus, 1758 - mammals
     Subclass Theriiformes (Rowe, 1988) M.C. McKenna & S.K. Bell, 1997 see Division Theriiformes
       Infraclass Holotheria (Wible et al., 1995) M.C. McKenna & S.K. Bell, 1997 see [unranked] Holotheria
         Superlegion Trechnotheria McKenna, 1975 see [unranked] Trechnotheria McKenna, 1975
           Legion Cladotheria McKenna, 1975 see [unranked] Cladotheria McKenna, 1975
             Sublegion Zatheria McKenna, 1975 see [unranked] Zatheria McKenna, 1975
               Infralegion Tribosphenida McKenna, 1975 see Sublegion Boreosphenida
                 Supercohort Theria Parker & Haswell, 1897 - therians see Clade Theria Parker & Haswell, 1897
                   Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997 - placentals
                     Magnorder Epitheria (McKenna, 1975) M.C. McKenna & S.K. Bell, 1997 see Cohort Placentalia (Owen, 1837) M.C. McKenna & S.K. Bell, 1997
                       Superorder Preptotheria (McKenna, 1975) McKenna, 1993
                         1 Grandorder Anagalida (Szalay & McKenna, 1971) McKenna, 1975 see Order Anagalida Szalay & McKenna, 1971
                         2 Grandorder Ferae (Linnaeus, 1758) McKenna, 1975 see Superorder Ferae (Linnaeus, 1758) Simpson, 1945
                         3 Grandorder Lipotyphla (Haeckel, 1866) McKenna, 1975 see Order Lipotyphla (Haeckel, 1866) Gregory, 1910
                         4 Grandorder Archonta Gregory, 1910 see Superorder Archonta Gregory, 1910
                         5 Grandorder Ungulata Linnaeus, 1766