Spores in strata of late Pennsylvanian cyclothems in the Illinois Basin.

Bibliographic Details
Main Author:	Peppers, Russel A. (Russel Allen), 1932-
Format:	Book
Language:	English
Published:	Urbana : State Geological Survey, 1964.
Series:	Bulletin (Illinois State Geological Survey) ; no. 90.
Subjects:	Paleobotany > Illinois Valley. Geology, Stratigraphic > Pennsylvanian. Plant spores, Fossil.

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