Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988] Count: [*†*] 1c;5o;2f; †14o;25f;96g Clade Epicynodonts Hopson & Kitching 2001 Count: [*†*] 1c;5o;2f; †14o;25f;94g Clade Eucynodontia Kemp 1982 [Rowe 1993] Count: [*†*] 1c;5o;2f; †14o;23f;93g Clade Mammaliamorpha Rowe 1988 Count: [*†*] 1c;5o;2f; †14o;23f;90g Class Mammalia Linnaeus, 1758 - mammals Count: [*†*] 5o;2f; †14o;21f;88g Clade Trechnotheria McKenna 1975 Count: [*†*] 4o; †6o;10f;53g Clade Cladotheria McKenna 1975 Count: [*†*] 4o; †6o;9f;46g Clade Zatheria McKenna 1975 Count: [*†*] 4o; †4o;2f;17g Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 - tribotherians see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001 Count: [*†*] 4o; †4o;1f;7g Infraclass Eutheria Gill, 1872 Count: [*†*] 2o; †3o;6g Genus †Prokennalestes Kielan-Jaworowska & Dashzeveg, 1989, sedis mutabilis Count: -