Trace fossils from the Rock Bluff Limestone (Pennsylvanian, Kansas)

The Rock Bluff Limestone Member of the Deer Creek Limestone of Virgilian age is marked by the presence of extensive bioturbation at its contact with the underlying Oskaloosa Shale Member. Three kinds of trace fossils are identified: elongate, sinuous trails, often containing the bivalve Wilkingia; nearly vertical cylindrical burrows packed with fusulinids and bioclastic debris: and the apparent resting burrows of ophiuroids, showing pentameral symmetry with quality dependent upon the coarseness of the bioelastic material filling them. The presumed ophiuroid burrows are here named Pentichnus pratti, n. ichnogen., n. ichnosp