[Theria] Parker & Haswell 1897 [McKenna 1975] see Subclass Theria Parker & Haswell, 1897
   Eutheria Gill 1872 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Eutheria Gill, 1872
     1 Afrotheria Stanhope, Waddell, Madsen, de Jong, Hedges, Cleven, Kao & Springer 1998 see Magnorder Afrotheria Stanhope, Waddell, Madsen, de Jong, Hedges, Cleven, Kao & Springer, 1998
     2 Order Xenarthra Cope, 1889 - xenarthrans see Magnorder Xenarthra Cope, 1889
     3 Boreoeutheria Springer & de Jong 2001 see Magnorder Boreoeutheria Springer & de Jong, 2001