Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
             Class Reptilia Linnaeus, 1758 - reptiles
               Subclass Anapsida Osborn, 1903 - anapsids
                 Order Testudines Wagler, 1830 - turtles
                   Suborder Pleurodira Cope, 1864
                     Family Chelidae Gray, 1825
                       Genus Hydromedusa Wagler, 1830
                         1 Hydromedusa tectifera Cope, 1870 - South American snake-necked turtle
                         2 Hydromedusa maximiliani (Mikan, 1825) - Brazilian snake-necked turtle