Kociolek, J. P., and G. K. Khursevich. “Morphology of Some Fossil Lacustrine Centric Species from the Western United States Assigned to the Genus Cyclotella (Bacillariophyta), Including Four Described As New”. Phytotaxa 127, no. 1 (August 29, 2013): 81–99. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.127.1.11.