L. L. . Brady and C. G. . Maples, “A Reference Section for the Pennsylvanian Lorton Coal Bed (Root Shale: Wabaunsee Group) in Kansas”, kgsbulletin, no. 230, pp. 17–20, Apr. 2024, Accessed: Jul. 03, 2024. [Online]. Available: https://journals.ku.edu/kgsbulletin/article/view/20482