- ↑ Günther, Albert (1882) Observations on some rare Reptiles and a Batrachian now or lately living in the Society's Menagerie, Transactions of the Zoological Society of London 11 (7): 215-222, 5 plates (2 in color)
- ↑ Gray, J.E. (1844) Catalogue of Tortoises, Crocodilians, and Amphisbaenians in the Collection of the British Museum., British Museum (Natural History), London. viii + 80 p.
- ↑ 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.
- ↑ Gmelin,S.G. (1789) In: Linnaeus, C. Systema Naturae per regna tria naturae secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus 1, Pars III. Editio decima tertia, aucta, reformata., Georg. Emanuel Beer, Lipsiae [Leipzig]. pp. 1033-1516.
- ↑ 5.0 5.1 Schneider, J.G. (1783) Allgemeine Naturgeschichte der Schildkröten, nebst einem Systematischen Verseichnisse der einzelnen Arten., Müller, Leipzig. xlviii + 364 p.
- ↑ 6.0 6.1 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