Thaynes Limestone
Thaynes Formation Stratigraphic range: Triassic | |
---|---|
Type | Formation |
Underlies | |
Overlies | Woodside Formation |
Lithology | |
Primary | limestone |
Location | |
Region | Montana, Idaho, Wyoming |
Country | United States |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Gren_River_Basin_Stratigraphic_Column.png/350px-Gren_River_Basin_Stratigraphic_Column.png)
Thaynes Limestone within Green River Basin stratigraphy
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[1] has been described from the Thaynes Formation.
See also[]
References[]
- ^ Brayard et al. (2017): Unexpected Early Triassic marine ecosystem and the rise of the Modern evolutionary fauna. Science Advances 3 (2):e1602159; doi:10.1126/sciadv.1602159 https://advances.sciencemag.org/content/3/2/e1602159/tab-pdf
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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Categories:
- Triassic geology of Montana
- Triassic Idaho
- Triassic geology of Utah
- Triassic geology of Wyoming
- Western United States geologic formation stubs
- Montana geography stubs
- Triassic stubs