Class Mammalia Linnaeus, 1758 - mammals Subclass Prototheria Gill, 1872 - monotremes Order Monotremata Bonaparte, 1837 - monotremes Family Tachyglossidae Gill, 1872 - spiny anteaters Genus Zaglossus Gill, 1877 - long-nosed echidna Zaglossus attenboroughi Flannery & Groves, 1998 - Sir David's long-beaked echidna