Mammaliaformes Rowe 1988 [crown clade] Mammalia Linnaeus, 1758 - mammals Theriiformes Rowe, 1988 see Division Theriiformes Rowe, 1988 †Triconodonta Osborn, 1888 see Order Triconodonta Osborn, 1888 †Triconodontidae Marsh, 1887 †Triconodontinae Marsh, 1887 †Astroconodon Patterson, 1951