| Twin Creek Limestone Stratigraphic range: Jurassic | |
|---|---|
| Type | Formation |
| Underlies | Preuss Formation |
| Overlies | Nugget Sandstone |
| Lithology | |
| Primary | limestone |
| Location | |
| Region | Wyoming |
| Country | United States |
The Twin Creek Limestone is a geologic formation in Wyoming. It preserves fossils dating back to the Jurassic period.
The Tongue River Member is a geologic member of the Fort Union Formation in North Dakota and Wyoming. It preserves fossils dating back to the Paleogene period.
The Belle Fourche Formation or Belle Fourche Shale is a fossiliferous early Late-Cretaceous geologic formation classification in Wyoming. Named for outcrops in Belle Fourche River, Wyoming, this unit name is also used in Montana, North Dakota, and South Dakota.
The Gros Ventre Formation is a geologic formation in Wyoming, USA. It preserves fossils dating back to the Cambrian period. The Gros Ventre consists of three main members; the Wolsey Shale, the Death Canyon Limestone, and the Park Shale.
The Aspen Shale is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.
The Newcastle Sandstone is a geologic formation in Wyoming, United States. It preserves fossils dating back to the Cretaceous period.
The Rock Springs Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.
The North Park Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Neogene period.
The Bighorn Dolomite is a geologic formation in Wyoming. It preserves fossils dating back to the Ordovician period.
The Tepee Trail Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period.
The Wagon Bed Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period.
The Wiggins Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period.
The Fowkes Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period.
The Goose Egg Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Permian 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 Crow Mountain Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Red Peak Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Gartra Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Jelm Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Triassic period.
The Wind River Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period. A recent study by Stanford suggests that fracking has contaminated the entire ground water resource in the basin.
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