Author: Imlay, R.W., 1961.:
Title: Late Jurassic ammonites from the Western Sierra Nevada, California.
Description: [U.S. Geol. Surv. Prof. Pap., 374-D.] Washington. 4to. Pp. iv,30, several photos on 6 pls., 3 figs., refs., index. Orig. wrs.

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