Collingwood Shale
Appearance
Collingwood Shale | |
---|---|
Stratigraphic range: Middle Ordovician | |
Type | Formation |
Underlies | Bill's Creek Shale |
Overlies | Trenton Formation |
Location | |
Region | ![]() |
Country | ![]() |
The Collingwood Formation is a geologic formation in Michigan. 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 31 July 2014. Retrieved 22 June 2014.
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