Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
Count: [f†f] 7c;100o;734f; ‡2o;8f; †2c;109o;819f;10g [22 Aug 2017]
   Gnathostomata
  Count: [f†f] 6c;98o;732f; ‡2o;8f; †2c;104o;782f;9g [22 Aug 2017]
     Teleostomi Bonaparte, 1836
    Count: [f†f] 5c;94o;691f; ‡2o;8f; †1c;82o;712f;7g [22 Aug 2017]
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
      Count: [f†f] 4c;54o;292f; ‡2o;8f; †56o;574f;3g [22 Aug 2017]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. - amniotes see Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
        Count: [f†f] 3c;51o;265f; ‡2o;8f; †48o;494f;3g [22 Aug 2017]
           Class Mammalia Linnaeus, 1758 - mammals
          Count: [f†f] 20o;119f; ‡5f; †23o;215f;1g [22 Aug 2017]
             Subclass Theria Parker & Haswell, 1897
            Count: [f†f] 19o;117f; ‡5f; †20o;196f;1g [22 Aug 2017]
               Theria of Metatherian-Eutherian grade
              Count: [f†f] 19o;117f; ‡5f; †18o;189f [22 Aug 2017]
                 Infraclass Eutheria Gill, 1872
                Count: [f†f] 18o;102f; ‡4f; †18o;173f [22 Aug 2017]
                   Order †Pantolesta McKenna, 1975
                  Count: [†f] †3f [2 Aug 2017]
                     ?Family †Ptolemiidae Carroll, 1988, nom. null. see Family Ptolemaiidae Osborn, 1908
                    Count: -