| Cordell Formation | |
|---|---|
| Stratigraphic range: Silurian | |
| Type | Formation |
| Unit of | Manistique Group [1] |
| Underlies | Rockview Formation |
| Overlies | Schoolcraft Formation |
| Location | |
| Region |  Michigan |
| Country |  United States |
The Cordell Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period. [2]
The Bass Islands Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Pointe aux Chenes Formation is a geologic formation in Michigan, USA. 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 Tymochtee Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Louisville Limestone 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 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 Laurel Formation, also known as the Laurel Limestone or the Laurel Dolomite, is a geologic formation in Indiana and Kentucky. It preserves fossils dating back to the Silurian period.
The Mosalem Formation is a geologic formation in Illinois. It preserves fossils dating back to the Silurian period.
The Cabot Head Shale is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Lime Island Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Hendricks Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Schoolcraft Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Rockview Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Rapson Creek Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Bush Bay Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The St. Ignace Dolomite is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
The Put-in-Bay Dolomite is a geologic formation in Michigan and Ohio. It preserves fossils dating back to the Silurian period. The type locality is South Bass Island in western Lake Erie.
The Raisin River Dolomite is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
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