Class Mammalia Linnaeus, 1758 - mammals Order †Morganucodonta Kermack, Mussett & Rigney, 1973, incertae sedis Family †Megazostrodontidae Gow, 1986 Genus †Megazostrodon Crompton & Jenkins, 1968 [monotypic] 1 †Megazostrodon rudnerae Crompton & Jenkins, 1968