Author: Brouwers, E.M., & Hazel, J.E., 1978.:
Title: Ostracoda and correlation of the Severn Formation (Navarroan; Maastrichtian) of Maryland.
Description: [SEPM Paleont. Mon., 1. / Jour. Paleont., Suppl., 52(6).] Tulsa, Okl. Pp. iv,52, several photos on 11 pls., 11 figs., refs. Orig. wrs.

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