Bourque, Jason. “A New Geoemydid (Testudines, Aff. Rhinoclemmydinae) from the Upper Eocene Chadron Formation (White River Group) of Northwestern Nebraska”. Bulletin of the Florida Museum of Natural History, vol. 58, no. 5, Dec. 2021, pp. 86-101, doi:10.58782/flmnh.nlkv7912.