Author: Gordon, M., Jr., 1957.:
Title: Mississippian cephalopods of Northern and Eastern Alaska.
Description: [U.S. Geol. Surv. Prof. Pap., 283.] Washington. 4to. Pp. iv,61,[8], several photos on 6 pls., 26 figs., refs., index. Orig. wrs. - Lower Carboniferous.

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