Waldron, Gary A., Gerard W. James, H.L. Strimple, Philip H. Heckel, Rick Dulas, David A. Grisafe, and Maynard P. Bauleke. “Short Papers on Research in 1977 - A) Uranium and Thorium in Volcanic Ash Deposits of Kansas: Implications for Uranium Exploration in the Central Great Plains; B) Significant Acrocrinid (Crinoidea-Camerata) from the Ladore Shale (Missourian, Upper Pennsy”. Bulletin (Kansas Geological Survey), no. 211 (January 1, 1978): 1–27. Accessed January 3, 2026. https://journals.ku.edu/kgsbulletin/article/view/22261.