Millersville Limestone Member

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Lithostratigraphy: McLeansboro Group >>Bond Formation >>Millersville Limestone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence

Primary source

Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.

Contributing author(s)

M. E. Hopkins and J. A. Simon


Original description

The Millersville Limestone Member of the Bond Formation (Taylor and Cady, 1944, p. 22).


Named for Millersville, Christian County.

Other names


Type section

Type location

The type locality consists of exposures near the village (SE NE 28 and NW NW 31, 12N-1W) (Payne and Cady, 1944, p.12-13).

Type author(s)

Type status

Reference section

Reference location

Reference author(s)

Reference status

Stratigraphic relationships

The the top of the Millersville Limestone Member defines the top of the Bond Formation in central and southern Illinois.

Extent and thickness

In the type area the Millersville is 50 feet thick and is divided into two or three benches by shale partings as much as 2-3 feet thick. It is the thickest limestone in the Pennsylvanian System in Illinois. In southern Fayette, Effingham, and Jasper Counties and farther south it is not well developed, although thin limestones in that area are considered as correlatives of part of the Millersville.


The limestone is light gray and fine grained. The Millersville has been extensively quarried in central Illinois.




Well log characteristics


The Millersville contains a diversified open-marine fauna.

Age and correlation

East of the La Salle Anticlinal Belt, the Livingston Limestone is correlated with the Millersville, as is the Argentine Limestone Member of Missouri.

Environments of deposition

Economic importance



PAYNE, J. N., and G. H. CADY, 1944, Structure of Herrin (No. 6) coal bed in Christian and Montgomery Counties and adjacent parts of Fayette. Macon, Sangamon, and Shelby Counties: Illinois State Geological Survey Circular 105, 57 p.
TAYLOR, E. F., and G. H. CADY, 1944, Structure of the Millersville Limestone in the north part of the Illinois Basin: Illinois State Geological Survey Report of Investigations 93, p. 22-26.

ISGS Codes

Stratigraphic Code Geo Unit Designation