Class Mammalia Linnaeus, 1758 - mammals Subclass †"Apotheria" Averianov & Lopatin, 2011 [paraphyletic] Superorder †Archaeosymmetrodonta Averianov & Lopatin, 2011 [monotypic] Order †Kuehneotheria McKenna, 1975 1 Genus †Kuehneotherium Kermack, Kermack & Mussett, 1968