Class Mammalia Linnaeus, 1758 - mammals
Order †Eutriconodonta Kermack, Mussett & Rigney, 1973, incertae sedis
Family †Triconodontidae Marsh, 1887
Subfamily †Alticonodontinae Fox, 1976
Genus †Arundelconodon Cifelli, Lipka, Schaff & Rowe, 1999 [monotypic]
†Arundelconodon hottoni Cifelli, Lipka, Schaff & Rowe, 1999