Class Mammalia Linnaeus, 1758 - mammals Subclass †"Apotheria" Averianov & Lopatin, 2011 [paraphyletic] Superorder †"Archaeotriconodonta" Averianov & Lopatin, 2011 [paraphyletic] Order †Morganucodonta Kermack, Mussett & Rigney, 1973 [paraphyletic] Genus †Megazostrodon Crompton & Jenkins, 1968 [sister group to excluded taxa]