Class Mammalia Linnaeus, 1758 - mammals
Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 - tribotherians
see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001
Infraclass Eutheria Gill, 1872
Magnorder Epitheria McKenna, 1975
see Cohort Placentalia Owen, 1837
Superorder Ferae Linnaeus, 1758
see Grandorder Ferae Linnaeus, 1758
Order Cimolesta McKenna, 1975
1 Family †Cimolestidae Marsh, 1889