Clade Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758 Clade Trechnotheria McKenna 1975 1 Clade †Zhangheotheria Averianov, Martin & Lopatin 2013 2 Clade Alethinotheria Averianov, Martin & Lopatin 2013