| Conneaut Group | |
|---|---|
| Stratigraphic range: Devonian | |
| Type | Group |
| Location | |
| Region |  Virginia |
| Country |  United States |
 | The verifiability of the claims made in this article is disputed.(September 2023) |
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations .(September 2023) |
The Conneaut Group is a geologic group in Virginia. It preserves fossils dating back to the Devonian period.
The Conemaugh Group is a geologic group in West Virginia, Pennsylvania, Ohio, and Maryland. It preserves fossils dating back to the Carboniferous period.
The Greenland Gap Group is a geologic group in West Virginia. It preserves fossils dating back to the Devonian period.
The Hampshire Formation is a geologic formation in West Virginia, USA. It preserves fossils dating back to the Devonian period.
The Potomac Group is a geologic group in Delaware, Maryland, New Jersey, and Virginia. It preserves fossils dating back to the Cretaceous period. An indeterminate tyrannosauroid and Priconodon crassus, a nodosaurid, are known from indeterminate sediments belonging to the Potomac Group. The Potomac Group was initially believed to have been Late Jurassic in age by Othniel Charles Marsh but later studies, such as Clark (1897), have found that the Potomac Group is in fact Early-Late Cretaceous (Aptian-Turonian) in age.
The Pamunkey Group is a geologic group in Virginia, United States. It preserves fossils dating back to the Paleogene period.
The Tuckahoe Group is a geologic group in Virginia. It preserves fossils dating back to the Triassic period.
The Fido Sandstone is a geologic formation in Virginia. It preserves fossils dating back to the Carboniferous period.
The Little Valley Formation is a geologic formation in Virginia, United States. 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 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 St. Marys Formation is a geologic formation in Maryland and Virginia, United States. It preserves fossils dating back to the Miocene Epoch of the Neogene period. It is the youngest Miocene formation present in the Calvert Cliffs and is part of the Chesapeake Group.
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.
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