|
Furnish & Knapp |
1966 |
Lower Pennsylvanian fauna from Eastern Kentucky; Part 1, Ammonoids.
Journal of Paleontology, 40: 296-308, fig.1-5, pl.35; Tulsa, Okla.
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Manger & Saunders |
1980 |
Lower Pennsylvanian (Morrowan) ammonoids from the North American midcontinent.
Journal of Paleontology, 54, Suppl.(3): 1-56, fig.1-21, pl.1-6, tab.1-10; Tulsa, Okla.
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Mapes, Windle & Sturgeon |
1997 |
Pennsylvanian Cephalopods of Ohio. Part 2. Ammonoid Cephalopods. [Mapes, R.H., Windle, D.L., Sturgeon, M.T. & Hoare, R.D., 1997.]
Ohio Division of Geological Survey, Bulletin 71: 193-260, 7 pls., 32 figs., Columbus, OH.
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