Author: Imlay R.W.,
Title: Early and Middle Bajocian (Middle Jurassic) ammonites from southern Alaska
Description: 1984. In 4to, original wrps., pp. 46 with 2 pls. with facing captions, 15 figs. and 5 tabs. Geological Survey Prof. Pap. 1322.

Keywords: paleontology ammonites fossil shells


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