The American Upper Ordovician standard
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Date
1960
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio. Division of Geological Survey
Abstract
Description
Pt. I is in the Journal of Paleontology, v.33, no.6, 1959, p. 1029-1068 and Pt. III is in the Journal of Paleontology, v.34, no.2, 1960, p. 237-294, Pt. IV is in Journal of Sedimentary Petrology, v. 30, No. 2, pp. 283-296, figs. 1-13, June, 1960.