Table III. Spirifers, Orthis and Strophodonta, from the shell-beds of the Iowa and Cedar Rivers, belonging to the Devonian Period. (on opposite page view) D.D. Owen. W.H. Dougal. (to accompany) Illustrations to the Geological Report of Wisconsin, Iowa, and Minnesota. (with) Report of a Geological Survey of Wisconsin, Iowa and Minnesota ... 1852.
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Table III. Spirifers, Orthis and Strophodonta, from the shell-beds of the Iowa and Cedar Rivers, belonging to the Devonian Period. (on opposite page view) D.D. Owen. W.H. Dougal. (to accompany) Illustrations to the Geological Report of Wisconsin, Iowa, and Minnesota. (with) Report of a Geological Survey of Wisconsin, Iowa and Minnesota ... 1852.
Full Title
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