Mammaliaformes Rowe 1988 [crown] Class Mammalia Linnaeus, 1758 - mammals Subclass Prototheria Gill, 1872 - monotremes Order Tachyglossa Gill, 1872 see Order Monotremata Bonaparte, 1837 Family Tachyglossidae Gill, 1872 - spiny anteaters Genus Zaglossus Gill, 1877 - long-nosed echidna