Manuscript
entitled, Fossil Flora and Fauna of
the Pennsylvanian Period, Will County, Illinois by George Langford (1876-1964) Return
to
georgesbasement
The complete series of
fossil-bearing deposits in chronological order, the earliest at the
bottom of the chart, pp 2-3.
GL's
sketch: Complete series of fossil-bearing deposits, oldest at the
bottom.
Description
of the chart at left in George Langford's handwriting.