Exter Formation

The Exter Formation is the only formation of the Upper Keuper or Rhätsandstein, and is a geologic formation in Germany. It preserves fossils dating back to the Rhaetian of the Triassic period (specifically around 205 Ma).

Exter Formation
Stratigraphic range: Rhaetian
Exter Formation at Krauthausen
TypeFormation
Unit ofKeuper
Sub-unitsRinteln Subformation, Oeynhausen Subformation, Vahlbruch Subformation
UnderliesBlack Jurassic
OverliesArnstadt formation, Trossingen Formation
ThicknessTypically between 100-150 m, locally 250 m in northern Germany, up to 45 m in southern Germany.
Lithology
PrimaryClaystone, Siltstone, Sandstone
OtherCoal
Location
RegionEurope
Country Germany
ExtentWidespread

See also

References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 8 July 2014.


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