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Furnish & Manger |
1973 |
Type Kinderhook Ammonoids.
Proceedings of the Iowa Academy of Science, 80 (1): 15-24, fig.1-3, pl.1, Iowa City.
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Miller & Collinson |
1951 |
Lower Mississippian ammonoids of Missouri.
Journal of Paleontology, 25: 454-487, fig.1-14, pl.68-71; Tulsa, Oklahoma.
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