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| Heckel, P. H., and Baesemann, J. F., 1975. Environmental interpretation of conodont distribution in Upper Pennsylvanian (Missourian) megacyclothems in eastern Kansas: American Association of Petroleum Geologists Bulletin, v. 59, no. 3, p. 486 – 509.
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| Holterhoff, P. F., 1988, Paleobiology and paleoecology of crinoids from the lower Stanton Formation (Late Pennsylvanian, Missourian) of the Mid-continent United States: University of Nebraska-Lincoln, Department of Geology, unpublished master’s thesis, 137 p.
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