"Land iguanas"(PDF). Charles Darwin Research Station Fact Sheet. Charles Darwin Foundation for the Galapagos Islands. 2006. Archived from the original(PDF) on 2007-06-06. Retrieved 2007-10-14.
Rassmann, K.; Tautz, D.; Trillmich, F.; Gliddon, C. (1997). "The micro – evolution of the Galápagos marine iguana Amblyrhynchus cristatus assessed by nuclear and mitochondrial genetic analysis". Molecular Ecology. 6 (5): 437. doi:10.1046/j.1365-294X.1997.00209.x. S2CID84822976.
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"Land iguanas"(PDF). Charles Darwin Research Station Fact Sheet. Charles Darwin Foundation for the Galapagos Islands. 2006. Archived from the original(PDF) on 2007-06-06. Retrieved 2007-10-14.