Black River Formation
Geologic formation in North America
(Learn how and when to remove this message) Black River Formation |
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Stratigraphic range: Middle Ordovician |
Type | Formation |
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Underlies | Trenton Formation |
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Overlies | Au Train Formation |
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Location |
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Region | Quebec and Michigan |
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Country | Canada and the United States |
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The Black River Formation is a geologic formation in Quebec, Canada and Michigan, United States. It preserves fossils dating back to the Ordovician period.
See also
- Earth sciences portal
- Canada portal
- Paleontology portal
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.
Chronostratigraphy of Michigan
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