Bibliographic record

Leary, Richard L., 1975.

Early Pennsylvanian paleogeography of an upland area, western Illinois, U.S.A. Bull. Soc. Belge Geologie, vol. 84, Bruxelles. p. 19-31 (Actual publication date, 1976).

Specimens figured in this publication:

416593, 416594, 416595, 416596, 416597, 416598, 416599, 416600, 416601, 416602, 416603,