Author: WICANDER, R. ET AL.
Title: Stratigraphic and paleogeographic significance of an Upper Ordovician acritarch flora from the Maquoketa Shale, northeastern Missouri, U.S.A.
Description: 1999. Paleont. Soc. Mem. 51; 38 pp. 18 fig./phot. (incl. 10 full page plates). Orig. wps. small ticket taped to base of spine, very good, 4to.

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