DiMichele, William A., Hook, Robert W., Kerp, Hans, Hotton, Carol L., Looy, Cindy V., and Chaney, Dan S. 2018. "Lower Permian flora of the Sanzenbacher Ranch, Clay County, Texas." In Transformative Paleobotany: Papers to Commemorate the Life and Legacy of Thomas N. Taylor. 95–126. Elsevier. (https://doi.org/10.1016/C2016-0-03920-7), https://doi.org/10.1016/B978-0-12-813012-4.00006-1.