Class Mammalia Linnaeus, 1758 - mammals Order †Eutriconodonta Kermack, Mussett & Rigney, 1973, incertae sedis Family †"Amphilestidae" Osborn, 1888 [paraphyletic] Genus †Triconolestes Engelmann & Callison, 1998 [monotypic] 1 †Triconolestes curvicuspis Engelmann & Callison, 1998