[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
           Phylum Chordata Bateson, 1885 - chordates
             Subphylum Vertebrata Cuvier, 1812 - vertebrates
               Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                 Class Reptilia Linnaeus, 1758 - reptiles
                   Subclass Anapsida Osborn, 1903 - anapsids
                     Order Chelonia Brongniart, 1800 see Class Chelonia Brongniart, 1800
                       Suborder Cryptodira Cope, 1868
                         Superfamily Testudinoidea Batsch, 1788
                           1 Family Dermatemydidae Gray, 1870 - Mesoamerican river turtles
                           2 Family Chelydridae Gray, 1831 - snapping turtles
                           3 Family Staurotypidae
                           4 Family Kinosternidae Agassiz, 1857 - mud and musk turtles
                           5 Family Platysternidae Gray, 1869
                           6 Family Emydidae Rafinesque, 1815 - pond turtles
                           7 Family Testudinidae Batsch, 1788 - tortoises