Historical:Beaver Bend Limestone Member

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Handbook of Illinois Stratigraphy
Series Bulletin 95
Author H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date 1975
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Lithostratigraphy: Pope Megagroup >>West Baden Group >>Paint Creek Group >>Ridenhower Formation >>Beaver Bend Limestone Member
Chronostratigraphy: Paleozoic Erathem >>Mississippian Subsystem >>Chesterian Series >>Gasperian Stage
Allostratigraphy: Kaskaskia Sequence


Elwood Atherton, Charles Collinson, and Jerry A. Lineback

Name Origin

The Beaver Bend Limestone Member of the Ridenhower Formation (Malott, 1919, p. 9-10), the lowermost member, is named for a prominent bend in Beaver Creek, Lawrence County, Indiana.

Type Section

The type section of the Beaver Bend Limestone Member is a railroad cut half a mile east of Huron.


The Beaver Bend is classified as a formation in Indiana. It consists of limestone and shale, and in southeastern Illinois it can be differentiated from the Reelsville Member only locally, where the intervening Sample Sandstone is present.


MALOTT, C. A., 1919, "American Bottoms" region of eastern Greene County, Indiana-a type unit in southern Indiana physiography: Indiana University Studies, v. 6, 61 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation