Buatois, L.A. (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”, Current Research in Earth Sciences, (241), pp. 1–27. doi:10.17161/cres.v0i241.11782.