Nopah Formation
Geology
Members: unnamed (14), Dunderberg Shale (5), Dunderberg Shale A (2), Dunderberg Shale B (2), Dunderberg Shale C (2), Dunderberg Shale D (1)
Lithologies: not reported (1), "shale" (19), siltstone (4), wackestone (1), "limestone" (19)
Paleoenvironments: marine indet. (12), carbonate indet. (2), deep subtidal shelf (4), offshore shelf (1), slope (7)
Age range: Steptoean or 497.00000 to 493.50000 Ma
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Nevada and Utah) | (74910) | |
| Steptoean | USA (Nevada) | (75268 75269 75270 75271 75272 75273 75274 75737 75738) | |
| Dresbachian | USA (California) | (226677 226675 226676) | |
| Dresbachian | USA (Nevada) | (75741 75742) | |
| Furongian | USA (California) | (226274 226275 226276 226277 226278 226279 226280 226281 226282 226283 226284) |