| Little Valley Formation | |
|---|---|
| Stratigraphic range: Viséan | |
| Type | Formation |
| Location | |
| Region |  Virginia |
| Country |  United States |
The Little Valley Formation is a geologic formation in Virginia, United States. It preserves fossils dating back to the Carboniferous period.
The Kanawha Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Hinton Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period. It is mainly made up of limestone, sandstone, and shale.
The Hampshire Formation is a geologic formation in West Virginia, USA. It preserves fossils dating back to the Devonian period.
The Rochester Shale is a geologic formation exposed in New York and West Virginia. It preserves fossils dating back to the Silurian period.
The Williamsport Sandstone is a sandstone geologic formation in West Virginia, Virginia, Pennsylvania, and Maryland. the formation includes the Cedar Creek Limestone member. Near Cumberland, Maryland it includes the Cedar Creek Limestone member. It preserves fossils dating back to the Silurian period.
The Fido Sandstone is a geologic formation in Virginia. It preserves fossils dating back to the Carboniferous period.
The Eggleston Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Mosheim Limestone is a geological formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Moccasin Formation is a geologic formation in Virginia and Tennessee. It preserves fossils dating back to the Ordovician period.
The Oranda Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Chepultepec Formation, is an Early Ordovician-age geological formation in the Appalachian regions of Eastern North America. Also known as the Chepultepec Dolomite, it is a unit of the Upper Knox Group, overlying the Copper Ridge Dolomite and underlying the Longview-Kingsport-Mascot sequence. The Chepultepec Formation is a primarily limestone and dolomite formation, the earliest formation of the Ordovician period in its area. Further north, it is equivalent to the Stonehenge Formation of the Beekmantown Group. The formation was first described from Allgood, Alabama, and has also been found in Tennessee and Virginia. Allgood was originally named "Chepultepec", providing its name to the formation as well. In Virginia, the Chepultepec Formation has a habit of forming large natural arches, including Natural Tunnel in Scott County and Natural Bridge in Rockbridge County.
The Bays Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Wardell Formation is a geologic formation in Virginia. It preserves fossils dating back to the Ordovician period.
The Rome Formation is a geologic formation in Alabama, Georgia, and Tennessee. It preserves fossils dating back to the Cambrian period.
The Java Formation is a geologic formation in Kentucky, New York, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia. It preserves fossils dating back to the Devonian period. The formation comprises the Pipe Creek Shale, Wiscoy Sandstone Member in New York, and Hanover Shale Member except in Tennessee.
The Conasauga Formation is a geologic formation in Georgia. It preserves fossils dating back to the Cambrian period.
The Alamosa Formation is a geologic formation in Colorado. It preserves fossils. The formation was deposited by Lake Alamosa, a paleolake that existed from the Pliocene to the middle Pleistocene.
The New River Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Princeton Sandstone is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Maccrady Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
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