Washington Formation
| Washington Formation Stratigraphic range: Pennsylvanian-Permian | |
|---|---|
| Type | Formation |
| Unit of | Dunkard Group[1] |
| Underlies | Greene Formation |
| Overlies | Monongahela Group |
| Lithology | |
| Primary | limestone, sandstone, coal |
| Other | shale |
| Location | |
| Region |
  |
| Country | United States |
The Washington Formation is a coal, sandstone, and limestone geologic formation in West Virginia.[1] It preserves fossils dating back to the Permian period.
See also
References
- 1 2 Berryhill, Jr., Henry L.; Swanson, Vernon E. (1962). "Geological Survey research 1962; Short papers in geology and hydrology" (PDF). U. S Geological Survey Professional Paper. 450-C: 43–46. Retrieved 30 June 2018.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.
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