Vertebrata Cuvier, 1812 - vertebrates
Ref: R.L. Carroll, 1988: fig. 1.3 [indirect position]; Count: [f†f] 7c;100o;734f; ‡2o;8f; †2c;109o;819f;10g [22 Aug 2017]
   Gnathostomata
  Ref: R.L. Carroll, 1988: fig. 1.3; Count: [f†f] 6c;98o;732f; ‡2o;8f; †2c;104o;782f;9g [22 Aug 2017]
     Teleostomi
    Ref: R.L. Carroll, 1988: fig. 1.3; Count: [f†f] 5c;94o;691f; ‡2o;8f; †1c;82o;712f;7g [22 Aug 2017]
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
      Ref: R.L. Carroll, 1988: fig. 1.3; Count: [f†f] 4c;54o;292f; ‡2o;8f; †56o;574f;3g [22 Aug 2017]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
        Ref: R.L. Carroll, 1988: fig. 1.3; Count: [f†f] 3c;51o;265f; ‡2o;8f; †48o;494f;3g [22 Aug 2017]
           Class Mammalia Linnaeus, 1758 - mammals
          Ref: R.L. Carroll, 1988: 627, table A-1 (p. 629), fig. 1.3; Count: [f†f] 20o;119f; ‡5f; †23o;215f;1g [22 Aug 2017]
             1 Subclass Prototheria Gill, 1872 - monotremes
            Ref: R.L. Carroll, 1988: 627; Count: [f†f] 1o;2f; †2o;5f [31 Jul 2017]
             2 Subclass †Allotheria Marsh, 1880 [monotypic]
            Ref: R.L. Carroll, 1988: 627; Count: [†f] †1o;13f [31 Jul 2017]
             3 Subclass Theria Parker & Haswell, 1897
            Ref: R.L. Carroll, 1988: 627, table A-1 (p. 629); Count: [f†f] 19o;117f; ‡5f; †20o;196f;1g [22 Aug 2017]
             4 Family †Didymoconidae Kretzoi, 1943, incertae sedis
            Ref: R.L. Carroll, 1988: 648; Count: -