Prida Formation
| Prida Formation | |
|---|---|
| Stratigraphic range: Triassic | |
| Type | Formation |
| Location | |
| Region | Nevada |
| Country | United States |
The Prida Formation is a geologic formation in northwestern Nevada. It preserves fossils dating back to the Triassic period.
Fossil Hill Member
The Prida Formation, along with the Favret Formation, constitute one of the recognized geological formations within the Star Peak Group of northwestern Nevada. These two formations are linked by a single member, known as the Fossil Hill Member. In the Prida Formation, this member outcrops in the western Humboldt Range, while the Favret Formation, outcrops in the Augusta Mountains, where it reaches up to more than 300 metres (980 ft) thick. Although they overlap substantially, the two formations do not share precisely the same age, the Prida unit dates from the Middle to Late Anisian, while the Favret unit dates only from the Late Anisian, between approximately 244 and 242 million years ago.[1]
The Fossil Hill Member has received extensive interest from paleontological research for its large quantity of marine fossils dating from the Middle Triassic. The environment preserved in the Fossil Hill contains some of the earliest marine reptile communities including Ichthyosaurs and Pistosaurs. Other fossils from this unit include invertebrates such as ceratitid ammonoids and bivalves as well as hybodont sharks and bony fish like Saurichthyes and Birgeria.[2]
See also
References
- ^ Nichols, K. M.; Silberling, N. J. (1977), "Stratigraphy and Depositional History of the Star Peak Group (Triassic), Northwestern Nevada", Geological Society of America Special Papers, vol. 178, Geological Society of America, pp. 1–74, doi:10.1130/spe178-p1, ISBN 978-0-8137-2178-1, retrieved 2024-07-07
- ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
 | This article about a specific stratigraphic formation in Nevada is a stub. You can help Wikipedia by adding missing information. |
Saunders_Quarry-1.jpg){kind=small} | This article related to the Triassic period is a stub. You can help Wikipedia by adding missing information. |
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.