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115
PHILLIPS, T. L., ANDREWS, H. N. 1968. Biscalitheca (Coenopteridales) from the Upper Pennsylvanian of Illinois. Palaeontology, 11, 1, 104–115.
Tom L. Phillips and Henry N. Andrews The frond anatomy and sporangial attachments of Biscalitheca musata Mamay are described from the Upper Pennsylvanian locality near Berryville, Illinois. The Palaeontological Association (Free Access)