[Theria] Parker & Haswell 1897 [McKenna 1975] see Subclass Theria Parker & Haswell, 1897
Count: -
   Eutheria Gill 1872 [O'Leary, Allard, Novacek, Meng & Gatesy 2004] see Infraclass Eutheria Gill, 1872
  Count: [o] 18o
     Boreoeutheria Springer & de Jong 2001 see Magnorder Boreoeutheria Springer & de Jong, 2001
    Count: [o] 11o
       Laurasiatheria Waddell, Okada & Hasegawa 1999 see Superorder Laurasiatheria Waddell, Okada & Hasegawa, 1999
      Count: [o] 6o
         Scrotifera Waddell, Cao, Hauf & Hasegawa 1999
        Count: [o] 5o
           Pegasoferae Nishihara, Hasegawa & Okada 2006 see Clade Scrotifera Waddell, Cao, Hauf & Hasegawa 1999
          Count: [o] 4o
             1 [Zooamata] see Clade Pegasoferae Nishihara, Hasegawa & Okada 2006
            Count: -
             1.1 Ferae Linnaeus 1758 see Superorder Ferae Linnaeus, 1758
            Count: [o] 2o
             1.2 Order Perissodactyla Owen, 1848 - odd-toed ungulates
            Count: -
             2 Order Chiroptera Blumenbach, 1779 - bats
            Count: -