An additional fossiliferous member in the Allegheny formation (Pennsylvanian) of Ohio Sturgeon, Myron Thomas 1908- creator Merrill, William M. joint author. text bibliography ohu Columbus 1949 monographic eng
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11 p. illus. 25 cm. by Myron T. Sturgeon and William M. Merrill. "References": p. 11. n-us-oh Geology, Stratigraphic Pennsylvanian Paleontology Pennsylvanian Geology Ohio Paleontology Ohio QE151 .A183 no. 5 557.71 s Information circular ; no. 5 Geological Survey of Ohio. gs 50000268 U.S. Geol Survey. Libr. 800418 20260227111357.0 gs 50000268