Buatois, L. A. ., Mángano, G. ., Maples, C. G. ., & Lanier, W. P. (1998). Allostratigraphic and Sedimentologic Applications of Trace Fossils to the Study of Incised Estuarine Valleys: An Example from the Virgilian Tonganoxie Sandstone Member of Eastern Kansas. Bulletin (Kansas Geological Survey), 241, 1-27. https://doi.org/10.17161/kgsbulletin.no.241.20401