| Dan River Group | |
|---|---|
| Stratigraphic range: Late Triassic | |
| Type | Group |
| Unit of | Newark Supergroup |
| Sub-units | Stoneville Formation, Cow Branch Formation, Dry Fork Formation, Walnut Cove Formation, Pine Hall Formation |
| Location | |
| Region |  Virginia,  North Carolina |
| Country |  United States |
| Type section | |
| Named for | Dan River |
| Named by | Thayer (1970) |
The Dan River Group is a geologic group in Virginia and North Carolina. It preserves fossils dating back to the Triassic period.
It contains five geological formations, from youngest to oldest:
- Stoneville Formation (cyclical red mudstone)
- Cow Branch Formation (cyclical fossiliferous black/dark grey mudstone with rare coarser lithologies)
- Dry Fork Formation (cyclical tan/red sandstone and grey/purple/red mudstone)
- Walnut Cove Formation (cyclical black/grey mudstone, sandstone, and coal)
- Pine Hall Formation (coarse tan sandstone and red mudstone)
See also
- List of fossiliferous stratigraphic units in Virginia
- List of fossiliferous stratigraphic units in North Carolina
References
- Olsen, Paul E.; Reid, Jeffrey C.; Taylor, Kenneth B.; Whiteside, Jessica H.; Kent, Dennis V. (2015). "Revised stratigraphy of Late Triassic age strata of the Dan River Basin (Virginia and North Carolina, USA) based on drill core and outcrop data". Southeastern Geology. 15 (1): 1–31.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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