The Marshall Sandstone is a geologic formation in Michigan. It preserves fossils dating back to the Mississippian period.

References
- John Alroy (ed.). "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
Neljapäev, märts 13, 2025
The Marshall Sandstone is a geologic formation in Michigan. It preserves fossils dating back to the Mississippian period.
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