Class Mammalia Linnaeus, 1758 - mammals Order †Morganucodonta Kermack, Mussett & Rigney, 1973, incertae sedis Family †Morganucodontidae Kühne, 1958 Genus †Erythrotherium Crompton, 1964 [monotypic] †Erythrotherium parringtoni Crompton, 1964