Author: Gordon M., Jr.,
Title: An early Reticuloceras Zone fauna from the Hale Formation in northwestern Arkansas
Description: 1968. In 4to, original wrps., pp. 32 with 2 pls. with facing captions and 12 figs. Geological Survey Prof. Pap. 613-A. Ex Library stamps and ticket but very good copy

Keywords: paleontology cephalopods fossil shells


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