Spores in strata of late Pennsylvanian cyclothems in the Illinois Basin
By: R.A. Peppers
Contributors: Illinois State Geological Survey
Series: Bulletin -- 90; Bulletin (Illinois State Geological Survey) -- 90.
Publisher: Illinois State Geological Survey
Published: 1964
Place of publication: Urbana, Ill
Language: eng
Number of pages: 89
Subjects: Stratigraphic Geology; Paleobotany; Fossil Plant spores; Coal
Notes: Includes bibliographical references (p. 70-71).

Also available online.
Table of contents: title: Introduction; title: Previous investigations; title: Preparation techniques; title: Description of small spores; title: Description of large spores and megaspores; title: Description of other microfossils; title: Distribution of small spore genera; title: Conclusions; title: Description of geologic sections.