Contributions to Pennsylvanian paleobotany
Subtitle: Notes on the Lepidocarpaceae
Series: Illinois State Geological Survey. Circular -- 73; Circular (Illinois State Geological Survey) -- 73.; Circular (Illinois State Geological Survey) -- no. 73.
Published: 1941
Place of publication: Urbana
Language: eng
Number of pages: 563
Subjects: Lepidocarpaceae; Stratigraphic Geology; Paleobotany
Notes: "Reprinted from the American Midland Naturalist, Vol. 25, no. 3, pp. 548-563, May, 1941."

Bibliography: p. 562-563.