CONODONTS from the GLEN DEAN FORMATION (CHESTER) of the ILLINOIS BASIN
R- ungenhom STATE OF ILLINOIS William G. Stratton, Governor DEPARTMENT OF REGISTRATION AND EDUCATION Vera M. Binks, Director 1958 CONODONTS from the GLEN DEAN FORMATION (CHESTER) of the ILLINOIS BASIN Carl 6. Rexroad REPORT OF INVESTIGATIONS 209 ILLINOIS STATE GEOLOGICAL SURVEY JOHN C. FRYE. Chief URBANA, ILLINOIS CONODONTS from the GLEN DEAN FORMATION (CHESTER) of the ILLINOIS BASIN Carl B. Rexroad Illinois State Geological Survey Report of Investigations 209 Urbana, Illinois June 1958 PRINTED BY AUTHORITY OF THE STATE OF ILLINOIS STATE OF ILLINOIS HON. WILLIAM G. STRATTON, Governor DEPARTMENT OF REGISTRATION AND EDUCATION HON. VERA M. BINKS, Director BOARD OF NATURAL RESOURCES AND CONSERVATION Hon. Vera M. Binks, Chairman W. H. Newhouse, Ph.D., Geology Roger Adams, Ph.D., D.Sc, Ll.D., Chemistry Robert H. Anderson, B.S., Engineering A. E. Emerson, Ph.D., Biology Lewis H. Tiffany, Ph.D., Pd.D., Forestry Dean W. L. Everitt, E.E., Ph.D., University of Illinois President Delyte W. Morris, Ph.D., Southern Illinois University GEOLOGICAL SURVEY DIVISION JOHN C. FRYE, Ph.D., D.Sc, Chief (76887—2,500—3-58) STATE GEOLOGICAL SURVEY DIVISION Urbana, Illinois. FULL TIME STAFF JOHN C. FRYE, Ph.D., D.Sc, Chief M. M. Leighton, Ph.D., D.Sc, Chief Emeritus Enid Townley, M.S., Geologist Helen E. McMorris, Secretary Velda a, Millard, Junior and Assistant to the Chief to the Chief Assistant to the Chief GEOLOGICAL GROUP M. L. Thompson, Ph.D., Principal Geologist Arthur Bevan, Ph.D., D.Sc, Principal Geologist, Emeritus Frances H. Alsterlund, A.B., Research Assistant COAL CLAY RESOURCES AND CLAY MINERAL TECHNOLOGY Jack A.
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