Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 243,
part 1
Sedimentology and Ichnology of Paleozoic Estuarine and Shoreface Reservoirs, Morrow Sandstone, Lower Pennsylvanian of Southwest Kansas, USA
Fig. 51. Facies L. Starved wave ripples. U-shaped Arenicolites burrows reworked by Chondrites (Nell).