REFERENCES
AN INTRODUCTION TO PALEOBOTANY. C. A. Arnold. McGraw-Hill Book Co., New York, 1947, 433 p.
GRUNDY AND WILL COUNTIES. Frank H. Bradley. In Worthen et al., Geology and Paleontology, Geological Survey of Illinois, vol. IV, 1870, p. 190-225.
PALMLIKE PLANTS FROM THE DOLORES FORMATION (TRIASSIC), SOUTHWESTERN COLORADO. Roland W. Brown. United States Geological Survey Professional Paper 274-H, 1956, p. 205-209.
CARBONIFEROUS INSECTS FROM THE VICINITY OF MAZON CREEK, ILLINOIS. F. M. Carpenter. Illinois State Museum Scientific Paper 3, pt. 1, 1943, p. 7-20.
THE LIVING CYCADS. C. J. Chamberlain. University of Chicago Press, Chicago, 1919, 172 p.
GUIDE FOR BEGINNING FOSSIL HUNTERS. Charles Collinson. Illinois State Geological Survey Educational Series 4, 1956, 36 p. (Revised 1959, 40 p.)
HISTORICAL GEOLOGY. Carl O. Dunbar. John Wiley & Sons, Inc., New York, 1949, 576 p.
COLLEGE BOTANY. Harry J. Fuller and Oswald Tippo. Henry Holt & Co., New York, 1954, 993 p.
HANDBUCH DER PALÄOBOTANIK, BD. 1: THALLOPHYTA, BRYOPHYTA, PTERIDOPHYTA. Max Hirmer. R. Oldenbourg, Munich and Berlin, 1927, 708 p.
SOME FOSSIL PLANT TYPES OF ILLINOIS. Raymond E. Janssen. Illinois State Museum Scientific Paper 1, 1940, 124 p.
LEAVES AND STEMS OF FOSSIL FORESTS. Raymond E. Janssen. Illinois State Museum Popular Science Series; v. 1, 1957, 190 p.
THE MAZON CREEK EURYPTERID: A REVISION OF THE GENUS LEPIDODERMA. Erik N. Kjellesvig-Waering. Illinois State Museum Scientific Paper 3, no. 4, 1948, p. 3-46.
PLANTS OF THE PAST. F. H. Knowlton. Princeton University Press, Princeton, N. J., 1927, 275 p.
THE WILMINGTON COAL FLORA FROM A PENNSYLVANIAN DEPOSIT IN WILL COUNTY, ILLINOIS. George Langford. Esconi Associates, Downers Grove, Ill., 1958, 360 p.
THE MAZON CREEK, ILLINOIS, SHALES AND THEIR AMPHIBIAN FAUNA. R. L. Moodie. American Journal of Science, 4th Series, v. 34, 1912, p. 277-285.
INTRODUCTION TO HISTORICAL GEOLOGY. Raymond C. Moore. McGraw-Hill Book Co., Inc., New York, 1958, 656 p.
PENNSYLVANIAN FLORA OF NORTHERN ILLINOIS. A. C. Noé. Illinois State Geological Survey Bulletin 52, 1925, 113 p.
PENNSYLVANIAN INVERTEBRATES OF THE MAZON CREEK AREA, ILLINOIS. Eugene S. Richardson, Jr. Fieldiana: Geology, v. 12, 1956, p. 1-76.
REPORT ON THE CARR AND DANIELS COLLECTIONS OF FOSSIL PLANTS FROM MAZON CREEK. Wilson N. Stewart. Illinois Academy of Science Transactions, v. 43, 1950, p. 41-45.
A RECENTLY DISCOVERED PHLEGETHONTIA FROM ILLINOIS. W. D. Turnbull and Priscilla F. Turnbull. Fieldiana: Zoology, v. 37, 1955, p. 523-535.
