Glenwood Formation
Glenwood Formation | |
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Stratigraphic range: Ordovician | |
Type | Formation |
Location | |
Country | United States |
Extent | Illinois and Minnesota |
The Glenwood Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
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Chronostratigraphy of Illinois
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