Klettgau Formation
Klettgau Formation Stratigraphic range: Carnian-Rhaetian ~ | |
---|---|
Type | Geological formation |
Unit of | Keuper |
Sub-units | Ergolz, Gansingen, Berlingen, Seebi, Gruhalde & Belchen Members |
Underlies | Staffelegg Formation |
Overlies | |
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°ECoordinates: 47°42′N 8°30′E / 47.7°N 8.5°E |
Approximate 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 |
![]() ![]() ![]() 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
- Hallautherium schalchi[5]
- [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]
- [7]
- ?Variodens sp.[6]
- cf. Diphydontosaurus sp.[7]
- cf. Eudimorphodon sp.[6]
- Archosauriformes indet.[8]
- Nothosauridae indet.[6]
- Pterosauria indet.[6]
- Sphenodontia indet.[7]
- Theropoda indet.[9]
- Amphibians
- Fish
- Invertebrates
- Crinoidea indet.[6]
- Echinodermata indet.[6]
- Mollusca indet.[6]
References[]
Bibliography[]
- . 2020. Taxonomic opinions on the Dinosauria, .. unpublished.
- A derived sauropodiform dinosaur and other sauropodomorph material from the Late Triassic of Canton Schaffhausen, Switzerland. 113. 8. doi:10.1186/s00015-020-00360-8 ISSN 1661-8726 ; , and . 2020.
- Nature Ecology & Evolution 3. 1146–1152. doi:10.1038/s41559-019-0941-z PMID 31285577 ISSN 2397-334X PMC 6669044 , and . 2019. A Triassic averostran-line theropod from Switzerland and the early evolution of dinosaurs.
- Neues Jahrbuch für Geologie und Paläontologie 285. 53–74. ; , and . 2017. The Late Triassic lepidosaur fauna from Hallau, North-Eastern Switzerland, and a new 'basal' rhynchocephalian Deltadectes elvetica gen. et sp. nov..
- doi:10.1007/s00015-016-0218-3 ISSN 1661-8726 ; ; ; ; ; ; , and . 2016. The middle to late Triassic Bänkerjoch and Klettgau formations of northern Switzerland. 109. 257–284.
- Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 10. 613–633. ; , and . 2006. A supposed heterodontosaurid tooth from the Rhaetian of Switzerland and a reassessment of the European Late Triassic record of Ornithischia (Dinosauria).
- Paleontological Journal 1. 138–140. . 1985. New data on a collection of tetrapod teeth from the Rhaetian of Hallau (Switzerland).
- . 1980. Rhaeto-Liassic mammals from Switzerland and West Germany. 5. 51–92.
- Schweizerische Paläontologische Abhandlungen 72. 1–72. . 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.
- , and . 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. 8. 263–315.
Categories:
- Geologic formations of Switzerland
- Triassic System of Europe
- Triassic Switzerland
- Carnian Stage
- Norian Stage
- Rhaetian Stage
- Marl formations
- Mudstone formations
- Conglomerate formations
- Dolomite formations
- Shallow marine deposits
- Paleontology in Switzerland