| Martin Bridge Formation Stratigraphic range: Triassic | |
|---|---|
| Type | Formation |
| Location | |
| Region | Idaho |
| Country | United States |
The Martin Bridge Formation is a geologic formation in Idaho. It preserves fossils dating back to the Triassic period.
The Thaynes Formation is a geologic formation in Montana and Idaho. It preserves fossils dating back to the Triassic period, such as Ammonoidea, Actinopterygii, Actinistia, Conodonta, Gastropoda, Nautiloidea, Ichthyosauria and others. A diverse fauna known as the Paris Biota has been described from the Thaynes Formation.
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 Arco Hills Formation is a geologic formation in Idaho. It preserves fossils dating back to the Carboniferous period.
The Little Flat Formation is a geologic formation in Idaho. It preserves fossils dating back to the Carboniferous period.
The Middle Canyon Formation is a geologic formation in Idaho. It preserves fossils dating back to the Carboniferous period.
The Muldoon 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. 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 Starlight 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 Meade Peak Formation is a geologic formation in Idaho. It preserves fossils dating back to the Permian period.
The Snaky Canyon 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.
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