Class Mammalia Linnaeus, 1758 - mammals Order †Eutriconodonta Kermack, Mussett & Rigney, 1973, incertae sedis Family †Triconodontidae Marsh, 1887 Subfamily †Alticonodontinae Fox, 1976 Genus †Jugulator Cifelli & Madsen, 1998 [monotypic] 1 †Jugulator amplissimus Cifelli & Madsen, 1998