The Three Forks Shale is a geologic formation in Montana and North Dakota. It preserves fossils dating back to the Devonian period.[1]

Three Forks Shale
Stratigraphic range: Devonian
TypeFormation
Location
RegionMontana
CountryUnited States

See also

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References

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  1. ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.