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| Elgin Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Location | |
| Region | Minnesota |
| Country | United States |
The Elgin Formation is a geological formation in Minnesota. 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 Leemon Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The St. Louis Formation is a geologic formation in Iowa. It preserves fossils dating back to the Carboniferous period.
The Cummingsville Formation is a geologic formation in Iowa and Minnesota. It preserves fossils dating back to the Ordovician period.
The Coleraine Formation is a geologic formation in Minnesota. It preserves fossils dating back to the Cretaceous period.
The Windrow Formation is a geologic formation in Minnesota named after Windrow Bluff on Fort McCoy, Monroe County, Wisconsin. It preserves fossils dating back to the Cretaceous period.
The Blaine Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The North Park Formation is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period.
The Minnekahta Formation is a geologic formation in Wyoming, United States. It preserves fossils dating back to the Permian period.
The Satanka Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Permian period.
The Jelm Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Dotsero Formation is a geologic formation in Colorado. It preserves fossils dating back to the Cambrian period.
The Minturn Formation is a geologic formation in Colorado. It preserves fossils dating back to the Carboniferous period. Among the fossils preserved are of crinoids, spiriferid brachiopods, gastropods, and the spines and teeth of numerous sharks such as Petalodus.
The Dyer Formation is a geologic formation in Colorado. It preserves fossils dating back to the Devonian period.
The Ouray Formation is a geologic formation in Colorado. It preserves fossils dating back to the Devonian period.
The Browns Park Formation is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period.
The Farisita Formation is a geologic formation in Colorado. It preserves fossils dating back to the Paleogene period.
The Huerfano Formation is a geologic formation in Colorado. It preserves fossils dating back to the Paleogene period.
The Middle Park Formation is a geologic formation in Colorado. It preserves fossils dating back to the Paleogene period.
The Animas Formation is a geologic formation in Colorado. It preserves fossils dating back to the Paleogene period.
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