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Furnish & Saunders |
1971 |
Ammonoids from the Middle Chester Beech Creek Limestone, St. Clair County.
University of Kansas paleontological Contributions, 51: 1-14, fig.1-3, pl.1-2.
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Gordon |
1965 |
Carboniferous Cephalopods of Arkansas.
Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
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Miller, Youngquist & Nielsen |
1952 |
Mississippian cephalopods from Western Utah.
Journal of Paleontology, 26: 148-161, 5 text-figs., pl.25-26; Tulsa, Okla.
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