| Conemaugh Group | |
|---|---|
| Stratigraphic range: Pennsylvanian | |
 | |
| Type | Group |
| Sub-units | Casselman Formation, Glenshaw Formation, Birmingham Shale, Skelley Member |
| Underlies | Monongahela Group |
| Overlies | Allegheny Formation |
| Location | |
| Region |  West Virginia  Pennsylvania  Ohio  Maryland |
| Country |  United States |
The Conemaugh Group is a geologic group in West Virginia, Pennsylvania, Ohio, and Maryland. It preserves fossils dating back to the Carboniferous period.
The Mauch Chunk Group is a geologic group in West Virginia. 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 Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland. It preserves fossils dating back to the Carboniferous and Permian periods.
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 Keefer Sandstone is a geologic formation in West Virginia. It preserves fossils dating back to the Silurian 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 Rose Hill Formation is a geologic formation in West Virginia, United States. It preserves fossils dating back to the Silurian period, and is a source of iron ore for nearby foundries.
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 Greene Formation is a geologic formation in West Virginia, Ohio, Maryland, Virginia and Pennsylvania. It preserves fossils dating back to the Permian period.
The Washington Formation is a coal, sandstone, and limestone geologic formation in West Virginia. It preserves fossils dating back to the Permian period.
The Black River Group is a geologic group in Illinois and West Virginia. It preserves fossils dating back to the Ordovician period.
The Rockdale Run Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating back to the Ordovician 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 Tomstown Dolomite or Tomstown Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating to the Cambrian Period.
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.
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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