[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
             [Zooamata] see Clade Pegasoferae Nishihara, Hasegawa & Okada 2006
            Count: -
               [Order "Prissodactyla" nom. null.] see Order Perissodactyla Owen, 1848
              Count: -