Benton Shale
Benton Shale Stratigraphic range: Cretaceous | |
---|---|
Type | Formation |
Underlies | Niobrara Formation |
Overlies | Dakota Sandstone |
Lithology | |
Primary | Shale |
Other | Limestone, sandstone, bentonite |
Location | |
Region | Montana, Wyoming, North Dakota, South Dakota, Colorado, Nebraska |
Country | United States |
Type section | |
Named for | Fort Benton, Montana |
The Benton Shale is a geologic formation in Montana, Wyoming, North Dakota, South Dakota, Colorado and Nebraska.[1] It preserves fossils dating back to the Cretaceous Period.
It is named from Fort Benton, on Upper Missouri River.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
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