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| Carboniferous - Blackwater formation; Canna formation; Greenbrier limestone; Pocono sandstone (1) |
| Devonian - Hampshire formation; Jennings formation; Romney shale; Monterey sandstone (1) |
| Geology -- United States --Maps (1) |
| Geology--Virginia--Maps (1) |
| Jurassic - unnamed strata (1) |
| Silurian - Monterey sandstone; Lewistown limestone; Rockwood formation; Cacapon sandstone; Tuscarora quartzite; Juniata formation; Martinsburg shale; Shenandoah limestone (1) |
| Triassic - unnamed strata (1) |