Class Mammalia Linnaeus, 1758 - mammals
   Subclass Boreosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 - tribotherians see Clade Boreosphenida Luo, Cifelli & Kielan-Jaworowska 2001
     Genus †Palaeomolops Averianov & Archibald, 2003, orth. inval., incertae sedis [monotypic] see Genus Paleomolops Cifelli, 1994
       †Palaeomolops langstoni Kielan-Jaworowska, Cifelli & Luo, 2004, comb. inval. see Paleomolops langstoni Cifelli, 1994