Langbahn Team – Weltmeisterschaft

Röt Formation

Röt Formation
Stratigraphic range: Anisian
(Aegean or Bithynian)
~247–242 Ma
Stratigraphy and extent of the Triassic in Germany
TypeFormation
Unit ofBuntsandstein
Sub-unitsViolet Horizon 5 Member
UnderliesJena Formation
OverliesPlattensandstein & Solling Formations
Lithology
PrimaryLimestone, mudstone, shale
OtherSandstone
Location
Coordinates51°30′N 11°54′E / 51.5°N 11.9°E / 51.5; 11.9
Approximate paleocoordinates17°30′N 19°42′E / 17.5°N 19.7°E / 17.5; 19.7
RegionSachsen-Anhalt, Baden-Württemberg, Bavaria, Hessen
CountryGermany
ExtentCentral Germany
Röt Formation is located in Germany
Röt Formation
Röt Formation (Germany)

The Röt Formation or Rötton Formation (German for Röt Shale), or Upper Buntsandstein, is a geologic formation of the Buntsandstein in Germany. It preserves fossils dating back to the Middle Triassic Epoch (Anisian or Aegean or Bithynian in the regional stratigraphy).[1] The formation overlies the Plattenstein and Solling Formations and is overlain by the Jena Formation.[2][3]

The limestones, mudstones, shales and sandstones of the formation, deposited in a shallow marine environment, have provided fossils of early archosaurs, temnospondyls, fish and insects.

Fossil content

The formation has provided the following fossils:[1]

Group Taxa Notes Images
Temnospondyls Eocyclotosaurus woschmidti [4][5]
Heptasaurus cappelensis (described as Mastodonsaurus cappelensis) [4]
Capitosauria indet. [6]
Reptiles Amotosaurus rotfeldensis [7]
Anomoiodon krejcii [7]
Crenelosaurus nigrosilvanus [7]
Cymatosaurus erikae [8]
C. erytheus [8]
C. fridericianus [9]
Marcianosuchus angustifrons
Sclerosaurus armatus [10]
Seemannia palaeotriadica [11]
Ctenosauriscidae indet. [6]
Fish Selachii indet. [6]
Insects Rhoeniella granulata [12]

Correlations

Based on the fossils of early archosaurs, the formation is correlated with the Donguz Formation of Russia, the upper Heshanggou Formation of China and the Holbrook Member of the Moenkopi Formation of Arizona.[3]

  • Paleogeography of the Early Triassic with archosaur fossil finds
    Paleogeography of the Early Triassic with archosaur fossil finds
  • Early Triassic formations with archosaur fossil finds
    Early Triassic formations with archosaur fossil finds

See also

References

  1. ^ a b Röt Formation at Fossilworks.org
  2. ^ Butler et al., 2011, p.2
  3. ^ a b Butler et al., 2011, p.25
  4. ^ a b Schoch & Werneburg, 1999
  5. ^ Fraser & Rieppel, 2006
  6. ^ a b c Butler et al., 2011
  7. ^ a b c Ortlam, 1967
  8. ^ a b Rieppel, 1997
  9. ^ Rieppel, 1999
  10. ^ Sues & Reisz, 2008
  11. ^ Von Huene, 1958
  12. ^ Ansorge, 1994

Bibliography

Quelle: http://en.wikipedia.org/wiki/R%C3%B6t_Formation