Class Mammalia Linnaeus, 1758 - mammals
Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 - tribotherians
see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001
Order †Aegialodontia Butler, 1978 [monotypic]
Family †Aegialodontidae Kermack, 1967
Genus †Kielantherium Dashzeveg, 1975 [monotypic]
†Kielantherium gobiensis Dashzeveg, 1975, comb. inval.
see Kielantherium gobiense Dashzeveg, 1975