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. 59. Close-up view showing burrows of firmground Glossifungites ichnofacies subtending from erosional discontinuity (Gaskill).