Mammaliaformes Rowe 1988, nom. cl. inval. see Clade Mammaliaformes Rowe 1988 [Rowe 2020]
   Order †Morganucodonta Kermack, Mussett & Rigney, 1973
     Family †Morganucodontidae Kühne, 1958
       1 Genus †Morganucodon Kühne, 1949
       2 Genus †Eozostrodon Parrington, 1941
       3 Genus †Brachyzostrodon Sigogneau-Russell, 1983
       4 Genus †Helvetiodon Clemens, 1980
       5 Genus †Erythrotherium Crompton, 1964
       6 Genus †Wareolestes Freeman, 1979