Layzell, A. L., Sawin, R. S., Mandel, R. D., Ludvigson, G. A., Franseen, E. K., West, R. R., & Watney, W. L. (2017). Quaternary Stratigraphy and Stratigraphic Nomenclature Revisions in Kansas. Current Research in Earth Sciences, 263, 1-8. https://doi.org/10.17161/cres.v0i263.11811