- ↑ McCord, W.P. & Joseph-Ouni, M. (2002) Chelonian illustrations #1: South American Toadhead Turtles., Reptilia (GB) (21): 34-38
- ↑ Alderton, D. (1988) Turtles and tortoises of the world., Facts on File, New York.
- ↑ Gaffney, Eugene S. (1977) The side-necked turtle family Chelidae: a theory of relationships using shared derived characters, American Museum Novitates (2620): 1-28
- ↑ Wermuth, H., and R. Mertens. (1977) Liste der rezenten Amphibien und Reptilien. Testudines, Crocodylia, Rhynchocephalia., Das Tierreich. Berlin. 100: i-xxvii, 1-174
- ↑ 5.0 5.1 Duméril, A.M.C., and G. Bibron. (1835) Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2., Librairie Encyclopédique de Roret, Paris, 680 p.
- ↑ 6.0 6.1 Schweigger, A.F. (1812) Prodromus Monographia Cheloniorum auctore Schweigger., Königsberg. Arch. Naturwiss. Mathem., 1: 271-368, 406-458.
- ↑ 7.0 7.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ TIGR Reptile Database . Uetz P. , 2 Oktubre 2007
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