Author: Girty G.H.,
Title: The fauna of the phosphate beds of the Park City formation in Idaho, Wyoming, and Utah
Description: 1910. [late Permian]. In 8vo broch., pp. 89 with 7 pls. (brachiopods and molluscs) Bull. US Geol. Surv., 436. Lacking on first cover

Keywords: shells fossil paleontology geology


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