Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988] Clade Epicynodonts Hopson & Kitching 2001 Clade Eucynodontia Kemp 1982 [Rowe 1993] Clade Mammaliamorpha Rowe 1988 Class Mammalia Linnaeus, 1758 - mammals Clade Trechnotheria McKenna 1975 Family †Spalacotheriidae Marsh, 1887 Subfamily †Spalacolestinae Cifelli & Madsen, 1999 Genus †Spalacotheroides Patterson, 1955