| Minturn Formation | |
|---|---|
| Stratigraphic range: Carboniferous | |
 The Minturn Formation above Minturn, Colorado | |
| Type | Formation |
| Underlies | Fountain Formation |
| Location | |
| Region | Colorado |
| Country | United States |
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 North Park Formation is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period.
The Dotsero Formation is a geologic formation in Colorado. It preserves fossils dating back to the Cambrian period.
The Sawatch Formation is a geologic formation in eastern Colorado. It is a sedimentary sequence formed approximately 530 million years ago during a marine transgression. It preserves fossils dating back to the Cambrian period. It is composed of glauconitic and quartz-rich sandstone.
The Battle Mountain Formation is a geologic formation in Colorado. It preserves fossils dating back to the Carboniferous period.
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 Pawnee Creek Beds is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period.
The Browns Park Formation is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period.
The Troublesome Formation is a geologic formation in Colorado. It preserves fossils dating back to the Neogene period. It consists of Pale shades of pink, tan, gray, green, and white interbedded siltstone and mudstone, less abundant arkosic sandstone and conglomerate, and sparse limestone and altered crystal-vitric ash and tuff; generally poorly consolidated. It includes atypical deposits containing abundant pink, granitic cobbles and boulders along the western parts of the outcrop in the west-central and southwestern parts of the Granby Quadrangle, Fossil mammals from three sites indicate a late Oligocene age.
The Fremont Formation is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.
The Harding Sandstone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician period.
The Manitou Limestone is a geologic formation in Colorado. It preserves fossils dating back to the Ordovician 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.
The Creede Formation is a geologic formation in Colorado. It preserves fossils dating back to the Paleogene period, particularly many well-preserved fossil plants from Oligocene strata.
The Maroon Formation is a geologic formation in Colorado. It preserves fossils dating back to the Permian period. It is the primary formation of sandstone that lends the vivid red color to the hills around Glenwood Springs, Colorado.
The Alamosa Formation is a geologic formation in Colorado. It preserves fossils. The formation was deposited by Lake Alamosa, a paleolake that existed from the Pliocene to the middle Pleistocene.
The Hermosa Group is a group of geologic formations in Utah and Colorado. It preserves fossils dating back to the Carboniferous period.
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