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United States / CA / Lassen County / CA-LAS-? / USGS-3534
- Lab number
- USGS-3534
- Material dated
- Shell
- Taxa dated
- freshwater, gastropod
- Type of date
- Geological
- Locality
- Lassen
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Normalized Age
- 7260 ± 58
- Context
- From "coquina" bed (mostly freshwater snails, few fish teeth, and possible ostracods) on basalt flow exposed in Bly Tunnel outlet trench dug in early 20s on SE lakeshore, coll by M.G. Sawlan