Class Mammalia Linnaeus, 1758 - mammals
   Clade Yinotheria Chow & Rich 1982 [Kielan-Jaworowska, Cifelli & Luo 2004]
     Subclass Australosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 see Clade Australosphenida Luo, Cifelli & Kielan-Jaworowska 2001
       Genus †Asfalotomylos Kielan-Jaworowska, Cifelli & Luo, 2002, orth. inval. [monotypic] see Genus Asfaltomylos Rauhut, Martin, Ortiz-Jaureguizar & Puerta, 2002
         1 †Asfalotomylos patagonicus Kielan-Jaworowska, Cifelli & Luo, 2004, comb. inval. see Asfaltomylos patagonicus Rauhut et al., 2002