Mammaliaformes Rowe 1988
   1 †Adelobasileus cromptoni Lucas & Hunt, 1990
   2.1 †Morganucodon oehleri Rigney, 1963
   2.2 †Morganucodon watsoni Kühne, 1949
   3.1 †Haldanodon exspectatus Kühne & Krusat, 1972
   3.2[B] [crown] Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758