Earth:Xert Formation

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Xert Formation
Stratigraphic range: Late Barremian
~122–120 Ma
TypeGeological formation
UnderliesForcall Formation
OverliesArtoles Formation, Arcillas de Morella Formation
Lithology
PrimaryLimestone, marl
OtherClaystone, chert
Location
Coordinates [ ⚑ ] : 40°42′N 0°06′E / 40.7°N 0.1°E / 40.7; 0.1
Paleocoordinates [ ⚑ ] 30°06′N 10°12′E / 30.1°N 10.2°E / 30.1; 10.2
RegionAragón
Country Spain
ExtentMaestrazgo Basin
 Galve Basin
Type section
Named forChert
Xert Formation is located in Spain
Xert Formation
Xert Formation (Spain)
Xert Formation is located in Aragon
Xert Formation
Xert Formation (Aragon)

The Calizas y margas de Xert Formation or Xert Formation is an Early Cretaceous (late Barremian) geologic formation of the Maestrazgo and Galve Basins in central-eastern Spain . The formation is described as a coastal claystone, with indications of a transgressive episode, marked by the transition from marsh facies, with little marine influence, to marine platform facies evidenced by abundant marine invertebrates.[1]

Fossil content

Dinosaurs
Invertebrates
  • Bivalvia indet.[1]
  • Gastropoda indet.
Flora

Correlation

See also

  • Mesozoic Spain
  • List of dinosaur-bearing rock formations
    • List of stratigraphic units with few dinosaur genera

References

  1. 1.0 1.1 1.2 1.3 Xert Formation at Fossilworks.org
  2. Weishampel et al., 2004, pp. 517-607

Bibliography

  • Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21.ISBN:0-520-24209-2

Further reading

  • G. Cuenca Bescós, O. Amo, J. L. Barco, J. I. Canudo, R. Royo Torres and J. I. Ruiz Omeñaca. 1999. Dinosaurios de Aragón [Dinosaurs of Aragon]. Zubía 17:235-257