Au Train Formation
| Au Train Formation Stratigraphic range: Early Ordovician | |
|---|---|
| Type | Formation |
| Underlies | Black River Formation |
| Overlies | Munising Formation |
| Location | |
| Region |
 Michigan |
| Country |
 United States |
The Au Train Formation is a geologic formation in Michigan. It preserves fossils dating back to the Ordovician period.
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.
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