| Valcour Formation Stratigraphic range: Ordovician | |
|---|---|
| Type | Formation |
| Location | |
| Region |  New York  Vermont |
| Country |  United States |
The Valcour Formation is a geologic formation in New York and Vermont. It preserves fossils dating back to the Ordovician 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 Sonyea Group is a geologic group in the northern part of the Appalachian Basin. It preserves fossils dating back to the Devonian 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 Reynales Formation is a geologic formation in New York. It preserves fossils dating back to the Silurian period.
The Eramosa Formation is a geologic formation in New York. It preserves fossils dating back to the Silurian period.
The Guelph Formation is a geologic formation in New York. It preserves fossils dating back to the Silurian period.
The Vernon Formation is a geologic formation in New York. It preserves fossils dating back to the Silurian period.
The Middlesex Shale is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Rhinestreet Shale is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Walton Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Cattaraugus Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Oswayo Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Enfield Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The New Scotland Formation is a geologic formation in New York. It preserves fossils dating back to the Devonian period.
The Crown Point Formation is a geologic formation in New York and Vermont. It preserves invertebrate fossils dating back to the Ordovician period. Notable fossiliferous localities within the Crown Point Formation include quarries in the towns of Panton and Isle La Motte, Vermont.
The Normanskill Formation is a geologic formation in New York. It preserves fossils dating back to the Ordovician period.
The Lockport Formation is a geologic formation in Ontario and New York State. It preserves fossils dating back to the Silurian period. It is named after the city of City of Lockport, New York, where the Erie Canal cuts through and exposes beds of dolomite.
The New River Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Pocahontas Formation is a coal-bearing geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
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