Klettgau Formation
The Klettgau Formation is a geological formation in Switzerland, It is Late Triassic in age, covering most of the mid to late Norian, the Carnian, and into the Rhaetian, spanning a period of 26-30 million years. The primary environment of deposits was that of a playa, with marine and fluvial intercalations. The lithology is quite variable consisting primarily of fine grained rocks typically claystones and dolocretes, often with sandstone or carbonaic fluvial channel fills.[1] Dinosaur fossils are known from the formation, including those of Plateosaurus, Notatesseraeraptor and Schleitheimia[2][3]
| Klettgau Formation Stratigraphic range: Carnian–Rhaetian | |
|---|---|
| Type | Geological formation |
| Unit of | Keuper |
| Sub-units | Ergolz Member, Gansingen Member, Berlingen Member, Seebi Member,Gruhalde Member, Belchen Member |
| Underlies | Staffelegg Formation |
| Overlies | Bänkerjoch Formation |
| Thickness | 30–60 metres (100–200 ft), locally up to 75 metres (250 ft) |
| Lithology | |
| Primary | Mudstone, Marl |
| Other | Dolomite, Sand |
| Location | |
| Location |  |
| Type section | |
| Named for | Klettgau |
| Named by | Jordan, et al |
| Location | Seebi quarry |
| Year defined | 2016 |
References
- Jordan, Peter; Pietsch, Johannes S.; Bläsi, Hansruedi; Furrer, Heinz; Kündig, Nicole; Looser, Nathan; Wetzel, Andreas; Deplazes, Gaudenz (September 2016). "The middle to late Triassic Bänkerjoch and Klettgau formations of northern Switzerland". Swiss Journal of Geosciences. 109 (2): 257–284. doi:10.1007/s00015-016-0218-3. ISSN 1661-8726.
- Zahner, Marion; Brinkmann, Winand (August 2019). "A Triassic averostran-line theropod from Switzerland and the early evolution of dinosaurs". Nature Ecology & Evolution. 3 (8): 1146–1152. doi:10.1038/s41559-019-0941-z. ISSN 2397-334X. PMC 6669044. PMID 31285577.
- Rauhut, Oliver W. M.; Holwerda, Femke M.; Furrer, Heinz (1 July 2020). "A derived sauropodiform dinosaur and other sauropodomorph material from the Late Triassic of Canton Schaffhausen, Switzerland". Swiss Journal of Geosciences. 113 (1): 8. doi:10.1186/s00015-020-00360-8. ISSN 1661-8726.
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