Ehret, Dana. “Skeletochronology: A Method For Determining The Individual Age and Growth of Modern and Fossil Tortoises (Reptilia: Testudines)”. Bulletin of the Florida Museum of Natural History 47, no. 2 (December 15, 2007): 49–72. Accessed May 13, 2026. https://flmnhbulletin.com/index.php/flmnh/article/view/flmnh-vol47-no2.