Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 241,
part 1
Allostratigraphic and Sedimentologic Applications of Trace Fossils to the Study of Incised Estuarine Valleys
Fig. 25. Undichna simplicitas, X1.
Kansas Geological Survey
Web version March 19, 1998
http://www.kgs.ku.edu/Current/1998/buatois/fig25.html
email:lbrosius@kgs.ku.edu