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 Insectivora Bowdich, 1821
           Order †Leptictida McKenna, 1975
             Family †Gypsonictopsidae Kielan-Jaworowska, Cifelli & Luo, 2004, orth. inval. see Family Gypsonictopidae Van Valen, 1967
               1 Genus †Gypsonictops Simpson, 1927