Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Infraclass Eutheria Gill, 1872
       Magnorder Boreoeutheria Springer & de Jong, 2001
         1 Superorder Euarchontoglires Murphy, Stanyon & O'Brien, 2001
         2 Superorder Laurasiatheria Waddell, Okada & Hasegawa, 1999