Taxon Search
Organism
  Animalia
    Bilateria
     Deuterostomia
      Chordata
        Vertebrata
         Gnathostomata
          Tetrapoda
            Reptilia
                   [Anapsida]
                   [Archosauria]
                   [Diapsida]
                   [Lepidosauria]
                    Testudines
                           [Cataphractae]
                           [Chelonites]
                           [Pantestudines]
                           [Testudina]
                           [Testudinea]
                      Cryptodira
                            Chelydridae
                                    Chelonura
                                    Chelydra
                                           [Cheliurus]
                                           [Devisia]
                                           [Emysaurus]
                                           [Ophichelone]
                                           [Rapara]
                                           [Saurochelys]
                                            Chelydra acutirostris
                                                   [Chelydra serpentina acutirostris]
                                            Chelydra rossignonii
                                                   [Emysaurus rossignonii]
                                            Chelydra serpentina
                                                   [Chelydra emarginata]
                                                   [Chelydra lacertina]
                                                   [Chelydra laticarinata]
                                                   [Chelydra osceola]
                                                   [Chelydra sculpta]
                                                   [Chelydra serpentina osceola]
                                                   [Chelydra serpentina serpentina]
                                                   [Devisia mythodes]
                                                   [Testudo serpentaria]
                                                   [Testudo serpentina]
                                              Chelydra serpentina osceola
                                            Chelydra serpentina rossignoni
                                              Chelydra serpentina serpentina
                                    Macrochelys
                                           [Gypochelys]
                                           [Macroclemys]
                                            Macrochelys apalachicolae
                                            Macrochelys suwanniensis
                                            Macrochelys temminckii
                                                   [Chelonura temminckii]
                                                   [Macroclemys temminckii]
                                                   [Testudo planitia]