Clade Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758 Clade Trechnotheria McKenna 1975 Clade Alethinotheria Averianov, Martin & Lopatin 2013 Clade Cladotheria McKenna 1975 Genus †Amphitherium Blainville, 1838 1 †Amphitherium prevostii (Mayer, 1832)