Thaynes Group
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| Thaynes Group | |
|---|---|
| Stratigraphic range: Triassic | |
| Type | Group |
| Sub-units | Sinbad Formation, Virgin Formation, Shnabkaib Formation |
| Underlies | Chinle Group |
| Overlies | Kaibab Formation |
| Lithology | |
| Primary | Limestone |
| Other | Shales, Siltstone |
| Location | |
| Region | Idaho, Nevada, Utah, Wyoming |
| Country | Script error: No such module "flag". |
| Type section | |
| Named by | T.H. Goodspeed |
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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.[1] The Thaynes Group is of marine origin. Its formations are interbedded with layers of the non-marine Moenkopi Group.[1]
It preserves fossils dating back to the Early Triassic epoch (Olenekian stage). The Lower Limestone Member contains the Paris biota lagerstätte, one of the first diverse assemblages of the Mesozoic era.[2]
See also
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- List of fossiliferous stratigraphic units in Idaho
- Paleontology in Idaho
- List of fossiliferous stratigraphic units in Nevada
- Paleontology in Nevada
- List of fossiliferous stratigraphic units in Utah
- Paleontology in Utah
- List of fossiliferous stratigraphic units in Wyoming
- Paleontology in Wyoming
References
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- ^ a b Page Module:Citation/CS1/styles.css has no content.Lucas, Spencer G.; Krainer, Karl; Milner, Andrew R. C. (2007). "The type section and age of the Timpoweap Member and stratigraphic nomenclature of the Triassic Moenkopi Group in Southwestern Utah". New Mexico Museum of Natural History and Science Bulletin. 40: 109–117.
- ^ Page Module:Citation/CS1/styles.css has no content.Brayard, Arnaud; Krumenacker, L. J.; Botting, Joseph P.; Jenks, James F.; Bylund, Kevin G.; Fara, Emmanuel; Vennin, Emmanuelle; Olivier, Nicolas; Goudemand, Nicolas; Saucède, Thomas; Charbonnier, Sylvain; Romano, Carlo; Doguzhaeva, Larisa; Thuy, Ben; Hautmann, Michael; Stephen, Daniel A.; Thomazo, Christophe; Escarguel, Gilles (2017). "Unexpected Early Triassic marine ecosystem and the rise of the Modern evolutionary fauna". Science Advances. 3 (2) e1602159. Bibcode:2017SciA....3E2159B. doi:10.1126/sciadv.1602159. PMC 5310825. PMID 28246643.
- Page Module:Citation/CS1/styles.css has no content.Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
