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Geologic Formation dating back to the Devonian Period in Michigan From Wikipedia, the free encyclopedia
The Bell Shale is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
Bell Shale | |
---|---|
Stratigraphic range: Middle Devonian | |
Type | Formation |
Unit of | Traverse Group |
Underlies | Rockport Quarry Limestone |
Overlies | Rogers City Limestone |
Location | |
Region | Michigan |
Country | United States |
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