Klettgau Formation
Stratigraphic range: Carnian-Rhaetian
~
TypeGeological formation
Unit ofKeuper
Sub-unitsErgolz, Gansingen, Berlingen, Seebi, Gruhalde & Belchen Members
UnderliesStaffelegg Formation
OverliesBänkerjoch Formation
Thickness30–60 m (98–197 ft)
locally up to 75 m (246 ft)
Lithology
PrimaryMudstone, marl
OtherDolomite, sandstone
Location
Coordinates47°42′N 8°30′E / 47.7°N 8.5°E / 47.7; 8.5
Approximate paleocoordinates35°12′N 10°42′E / 35.2°N 10.7°E / 35.2; 10.7
RegionAargau, Schaffhausen
Country  Switzerland
Type section
Named forKlettgau
Named byJordan et al.
LocationSeebi quarry
Year defined2016
Klettgau Formation is located in Switzerland
Klettgau Formation
Klettgau Formation
Klettgau Formation (Switzerland)

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
Reptiles
Amphibians
Fish
Invertebrates

References

  1. 1 2 Klettgau Formation at Fossilworks.org
  2. ↑ Jordan et al., 2016
  3. ↑ Zahner & Brinkmann, 2019
  4. ↑ Rauhut et al., 2020
  5. 1 2 Tatarinov, 1985
  6. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Clemens, 1980
  7. 1 2 3 4 Whiteside et al., 2017
  8. ↑ 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". Swiss Journal of Palaeontology. 141 (1): 17. doi:10.1186/s13358-022-00260-4. ISSN 1664-2376. PMC 9613585. PMID 36317153.
  9. ↑ Butler et al., 2006
  10. ↑ Carrano, 2020
  11. 1 2 3 Schalch & Peyer, 1919
  12. ↑ 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 unpublished.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(1). 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(2). 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. .
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