Baars, D. L. ., Ross, C. A., Ritter, S. M. ., & Maples, C. G. . (2024). Proposed Repositioning of the Pennsylvanian-Permian Boundary in Kansas. Bulletin (Kansas Geological Survey), 230, 5-10. https://doi.org/10.17161/kgsbulletin.no.230.20480