Open AccessNew Graptolite and Lithostratigraphic Evidence From the Cincinnati Region, U.s.a., For the Definition and Correlation of the Base of the Cincinnatian Series [Upper Ordovician]
Author(s) -
Charles E. Mitchell,
S M Bergstrom
Publication year - 1991
Language(s) - English
Resource type - Reports
DOI - 10.4095/132177
Subject(s) - ordovician , series (stratigraphy) , paleontology , base (topology) , geology , mathematics , mathematical analysis
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