Coordinates: 51°30′N 11°54′E / 51.5°N 11.9°E / 51.5; 11.9

Röt Formation

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Röt Formation
Stratigraphic range: Anisian
(Aegean or Bithynian)
~247–242 Ma
↓
File:Stratigraphic and geographical data for German ctenosauriscid specimens.png
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
CoordinatesLua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value).
Approximate paleocoordinatesLua error: callParserFunction: function "#coordinates" was not found.
RegionSachsen-Anhalt, Baden-Württemberg, Bavaria, Hessen
CountryGermany
ExtentCentral 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

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The formation has provided the following fossils:[1]

Group Taxa Notes Images
Temnospondyls Eocyclotosaurus woschmidti [4][5]
File:Eocyclotosaurus wellesi1DB.jpg
Heptasaurus cappelensis (described as Mastodonsaurus cappelensis) [4]
File:Heptasaurus kappelensis.jpg
Capitosauria indet. [6]
Reptiles Amotosaurus rotfeldensis [7]
File:Amotosaurus rotfeldensis holotype.jpg
Anomoiodon krejcii [7]
Crenelosaurus nigrosilvanus [7]
Cymatosaurus erikae [8]
C. erytheus [8]
C. fridericianus [9]
Marcianosuchus angustifrons
Sclerosaurus armatus [10]
File:Sclerosaurus1DB.jpg
Seemannia palaeotriadica [11]
Ctenosauriscidae indet. [6]
Fish Selachii indet. [6]
Insects Rhoeniella granulata [12]

Correlations

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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]

See also

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References

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  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

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