Spieden Formation
The Spieden Formation is a geologic formation in the US state of Washington. It preserves fossils dating back to the Cretaceous period.
| Spieden Formation | |
|---|---|
| Stratigraphic range: Cretaceous | |
| Type | Formation |
| Location | |
| Region | Washington (state) |
| Country | United States |
See also
References
- Hendy, Austin (22 August 2008). "UWA A535 [Spieden Fm] (Cretaceous of the United States)". Fossilworks: Gateway to the Paleobiology Database. PaleoDB collection 83571
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