| Olentangy Shale | |
|---|---|
| Stratigraphic range: Late Devonian | |
| Type | Formation |
| Underlies | Ohio Shale |
| Overlies | Hillsboro Sandstone and Tymochtee Dolomite |
| Location | |
| Region |  Ohio |
| Country |  United States |
The Olentangy Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Waynesville Formation is a geologic formation in Ohio and Indiana. It preserves fossils from the Late Ordovician period.
The Saluda Formation is a geologic formation in Ohio and Indiana. It preserves fossils dating back to the Ordovician period.
The Sylvania Sandstone is a geologic formation in Ohio and Michigan. Its type locality is Sylvania, Ohio. It preserves fossils dating back to the Devonian period.
The Tymochtee Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Arnheim Formation is a geologic formation in Ohio. It preserves fossils dating back to the Ordovician period.
The Liberty Formation is a geologic formation in Ohio and Indiana. It preserves fossils dating back to the Ordovician period.
The Miamitown Formation is a geologic formation in Ohio. It preserves fossils dating back to the Ordovician period.
The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
The Fairview Formation is a geologic formation in Ohio. It preserves fossils dating back to the Late Ordovician period.
The Ohio Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Holland Quarry Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
The Dundee Limestone is a geologic formation in Michigan, Ohio and Ontario. It preserves fossils dating back to the Devonian period.
The Peebles Dolomite is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Lilley Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Bisher Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Maxville Limestone is a geologic formation in Ohio. It preserves fossils dating back to the Carboniferous period.
The Cincinnati Group is a geologic group in Kentucky, Ohio and Indiana. It is Upper Ordovician.
The Osgood Formation, also known as the Osgood Shale is a geologic formation in Indiana, Kentucky, and Ohio. It preserves fossils dating back to the Silurian period.
The Prout Limestone is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.
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