An Early Pennsylvanian flora with megalopteris and noeggerathiales from west-central Illinois
By: Richard L. Leary, Hermann W. Pfefferkorn.
Contributors: Pfefferkorn, H. W., joint author.; Illinois State Museum.
Series: Circular - Illinois State Geological Survey ;; 500; Circular (Illinois State Geological Survey) ;; 500.
Publisher: Illinois State Geological Survey
Published: 1977
Place of publication: Urbana
Language: eng
Number of pages: 77
Subjects: Paleobotany -- Pennsylvanian.; Paleobotany -- Illinois.
Notes: Bibliography: p. 42-46.
"Prepared in cooperation with the Illinois State Museum, Springfield."