Earth:Klettgau Formation
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Short description: Geological formation in Switzerland
Klettgau Formation Stratigraphic range: Carnian-Rhaetian ~235–202 Ma | |
---|---|
Type | Geological formation |
Unit of | Keuper |
Sub-units | Ergolz, Gansingen, Berlingen, Seebi, Gruhalde & Belchen Members |
Underlies | Staffelegg Formation |
Overlies | Bänkerjoch Formation |
Thickness | 30–60 m (98–197 ft) locally up to 75 m (246 ft) |
Lithology | |
Primary | Mudstone, marl |
Other | Dolomite, sandstone |
Location | |
Coordinates | [ ⚑ ] : 47°42′N 8°30′E / 47.7°N 8.5°E |
Paleocoordinates | [ ⚑ ] 35°12′N 10°42′E / 35.2°N 10.7°E |
Region | Aargau, Schaffhausen |
Country | ![]() |
Type section | |
Named for | Klettgau |
Named by | Jordan et al. |
Location | Seebi quarry |
Year defined | 2016 |
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.[1]
Description
The primary depositional environment 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 carbonatic fluvial channel fills.[2]
Fossil content
Dinosaur fossils are known from the formation, including those of Plateosaurus, Notatesseraeraptor frickensis and Schleitheimia[3][4]
The following other fossils were found in the formation:[1]
- Prozostrodontia
- Hallautherium schalchi[5]
- Helvetiodon schutzi[5]
- ?Thomasia sp.[6]
- cf. Thomasia sp.[6]
- Thomasia antiqua[6]
- T. moorei[6]
- Tricuspes cf. tuebingensis[6]
- ?Haramiyidae indet.[6]
- Morganucodon peyeri
- Morganucodon sp.
- Reptiles
- Deltadectes elvetica[7]
- Termatosaurus albertii[6]
- Proganochelys quenstedtii[8]
- Paleollanosaurus sp.[7]
- ?Variodens sp.[6]
- cf. Diphydontosaurus sp.[7]
- cf. Eudimorphodon sp.[6]
- Archosauriformes indet.[9]
- Nothosauridae indet.[6]
- Pterosauria indet.[6]
- Sphenodontia indet.[7]
- Theropoda indet.[10]
- Amphibians
- Fish
- Ceratodus parvus[11]
- Sargodon tomicus[11]
- Dapedium sp.[12]
- Hybodus sp.[11]
- Osteichthyes indet.[6]
- Invertebrates
References
- ↑ 1.0 1.1 Klettgau Formation at Fossilworks.org
- ↑ Jordan et al., 2016
- ↑ Zahner & Brinkmann, 2019
- ↑ Rauhut et al., 2020
- ↑ 5.0 5.1 Tatarinov, 1985
- ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 Clemens, 1980
- ↑ 7.0 7.1 7.2 7.3 Whiteside et al., 2017
- ↑ Scheyer, Torsten M.; Klein, Nicole; Evers, Serjoscha W.; Mautner, Anna-Katharina; Pabst, Ben (December 2022). "First evidence of Proganochelys quenstedtii (Testudinata) from the Plateosaurus bonebeds (Norian, Late Triassic) of Frick, Canton Aargau, Switzerland" (in en). Swiss Journal of Palaeontology 141 (1): 17. doi:10.1186/s13358-022-00260-4. ISSN 1664-2376. PMID 36317153.
- ↑ Butler et al., 2006
- ↑ Carrano, 2020
- ↑ 11.0 11.1 11.2 Schalch & Peyer, 1919
- ↑ Peyer, 1956
Bibliography
- Carrano, M. T. 2020. Taxonomic opinions on the Dinosauria, .. unpublished.
- Rauhut, Oliver W. M.; Femke M. Holwerda, and Heinz Furrer. 2020. A derived sauropodiform dinosaur and other sauropodomorph material from the Late Triassic of Canton Schaffhausen, Switzerland. Swiss Journal of Geosciences 113. 8. doi:10.1186/s00015-020-00360-8 ISSN 1661-8726
- Zahner, M., and W. Brinkmann. 2019. A Triassic averostran-line theropod from Switzerland and the early evolution of dinosaurs. Nature Ecology & Evolution 3. 1146–1152. doi:10.1038/s41559-019-0941-z PMID 31285577 ISSN 2397-334X PMC 6669044
- Whiteside, D. I.; C. J. Duffin, and H. Furrer. 2017. The Late Triassic lepidosaur fauna from Hallau, North-Eastern Switzerland, and a new 'basal' rhynchocephalian Deltadectes elvetica gen. et sp. nov.. Neues Jahrbuch für Geologie und Paläontologie 285. 53–74.
- Jordan, Peter; Johannes S. Pietsch; Hansruedi Bläsi; Heinz Furrer; Nicole Kündig; Nathan Looser; Andreas Wetzel, and Gaudenz Deplazes. 2016. The middle to late Triassic Bänkerjoch and Klettgau formations of northern Switzerland. Swiss Journal of Geosciences 109. 257–284. doi:10.1007/s00015-016-0218-3 ISSN 1661-8726
- Butler, R. J.; L. B. Porro, and A. B. Heckert. 2006. A supposed heterodontosaurid tooth from the Rhaetian of Switzerland and a reassessment of the European Late Triassic record of Ornithischia (Dinosauria). Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 10. 613–633.
- Tatarinov, L. P. 1985. New data on a collection of tetrapod teeth from the Rhaetian of Hallau (Switzerland). Paleontological Journal 1. 138–140.
- Clemens, W. A. 1980. Rhaeto-Liassic mammals from Switzerland and West Germany. Zitteliana 5. 51–92.
- Peyer, B. 1956. Über Zähne von Haramiyiden, von Triconodonten und von wahrscheinlich synapsiden Reptilien aus dem Rhät von Hallau, Kt. Schaffhausen, Schweiz - On the teeth of haramiyids, triconodonts, and probable synapsid reptiles from the Rhaetic of Hallau, Kanton Schaffhausen, Switzerland. Schweizerische Paläontologische Abhandlungen 72. 1–72.
- Schalch, F., and B. Peyer. 1919. Über ein neues Rhätvorkommen im Keuper des Donau-Rheinzuges - On a new occurrence of the Rhaetian in the Keuper of the Danube-Rhine valleys. Mitteilungen der Badischen Geologischen Landesanstalt 8. 263–315.
![]() | Original source: https://en.wikipedia.org/wiki/Klettgau Formation.
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