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Geologic formation in Iowa and Minnesota, United States. From Wikipedia, the free encyclopedia
The Stewartville Formation is a geologic formation in Iowa. It preserves fossils dating back to the Ordovician period.
Stewartville Formation | |
---|---|
Stratigraphic range: Ordovician | |
Type | Formation |
Location | |
Country | United States |
Extent | Iowa and Minnesota |
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