Frazier, Michael. “A Revision of the Fossil Erethizontidae of North America”. Bulletin of the Florida Museum of Natural History 27, no. 1 (January 5, 1982): 1–76. Accessed June 18, 2026. https://flmnhbulletin.com/index.php/flmnh/article/view/flmnh-vol27-no1.