| Seven Devils Group | |
|---|---|
| Stratigraphic range: Triassic | |
| Type | Group |
| Location | |
| Region | Idaho |
| Country | United States |
The Seven Devils Group is a geologic group in Idaho. It preserves fossils dating back to the Triassic period.
The Thaynes Formation is a geologic formation in Montana and Idaho, United States. It was recently elevated to group status, as the Thaynes Group.
The Langston Formation is a geologic formation in Idaho and Utah. It preserves fossils dating back to the Cambrian period. The formation is composed of bluish-gray limestone, weathering to a buff color, often with rounded edges.
The St. Charles Formation is a geologic formation in Idaho. It preserves fossils dating back to the Cambrian period.
The Ute Formation is a geologic formation in Idaho. It preserves fossils dating back to the Cambrian period.
The Middle Canyon Formation is a geologic formation in Idaho. It preserves fossils dating back to the Carboniferous period.
The Sage Junction Formation is a geologic formation in Idaho. It preserves fossils dating back to the Cretaceous period.
The Coon Hollow Formation is a geologic formation in Idaho. It preserves fossils dating back to the Jurassic period.
The Twin Creek Formation is a geologic formation in Idaho, United States. It preserves fossils dating back to the Jurassic period.
The Beaverdam Formation is a geologic formation in Idaho. It preserves fossils dating back to the Neogene period.
The Chalk Hills Formation is a geologic formation in Idaho. It preserves fossils dating back to the Neogene period.
The Poison Creek Formation is a geologic formation in Idaho. It preserves fossils dating back to the Neogene period.
The Railroad Canyon Beds Formation is a geologic formation in Idaho. It preserves fossils dating back to the Neogene period.
The Garden City Formation is a geologic formation in Idaho. It preserves fossils dating back to the Ordovician period.
The Challis Volcanics is a geologic formation in Idaho. It preserves fossils dating back to the Paleogene period.
The Meade Peak Formation is a geologic formation in Idaho. It preserves fossils dating back to the Permian period.
The White Knob Formation is a geologic formation in Idaho. It preserves fossils dating back to the Permian period.
The Martin Bridge Formation is a geologic formation in Idaho. It preserves fossils dating back to the Triassic period.
The Valmy Group is a geologic group in Idaho. It preserves fossils dating back to the Ordovician period.
The Thaynes Group, Thaynes Formation in older literature, is a geologic group in eastern Idaho, western Wyoming, Utah and eastern Nevada. It includes the Sinbad Formation, Virgin Formation and Shnabkaib Formation. The Thaynes Group is of marine origin. Its formations are interbedded with layers of the non-marine Moenkopi Group.
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