Collecting Fossil Plants and Animals
in the Pennsylvanian Deposits of the Will County, Illinois Coal Measures
The Field Notes of George Langford, Sr. in the Years 1937-1960.
Prepared and organized by George Langford, Jr., 1973.
Copyright George Langford, III, 2010
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Pennsylvanian Coal Flora & Fauna of Northern Illinois - Fossil Collecting Localities - George Jr.'s Map
Fossil Collecting Localities - George Langford, Junior and Senior