Historical:Seelyville Coal 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: Kewanee Group >>Spoon Formation >>Seelyville Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian Series
Allostratigraphy: Absaroka Sequence


M. E. Hopkins and J. A. Simon

Name Origin

The Seelyville Coal Member of the Spoon Formation (Kosanke et al., 1960, p. 33; incorrectly spelled "Seeleyville") is named for Seelyville, Vigo County, Indiana.

Type Section

The type locality is in mines in Seelyville (12N-7 and 8W).

Other Names

It was originally named Indiana Coal III (Ashley, 1899, p. 106-107) but informally called Seelyville in Indiana.


In Indiana it is now called Seelyville Coal Member (III).

Extent & Thickness

In Illinois the Seelyville is known primarily in Edgar, Clark, and Crawford Counties, where it as much as 6 feet thick. It occurs locally in southern Illinois between the De Koven and Colchester Coals.


ASHLEY, G. H., 1899, Coal deposits of Indiana: Indiana Department of Geology and Natural Resources, 23rd Annual Report, 1898, p. 1-1573.
KOSANKE, R. M., J. A. SIMON, H. R. WANLESS, and H. B. WILLMAN, 1960, Classification of the Pennsylvanian strata of Illinois: Illinois State Geological Survey Report of Investigations 214, 84 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation