Scales Shale
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Scales Shale | |
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Stratigraphic range: Ordovician | |
Type | Formation |
Unit of | Maquoketa Group |
Underlies | Fort Atkinson Limestone |
Overlies | Trenton Limestone |
Location | |
Region | Illinois, Indiana |
Country | United States |
The Scales Shale is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
See also
[edit]References
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.
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