Earth:Villalba de la Sierra Formation

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Villalba de la Sierra Formation
Stratigraphic range: Campanian-Maastrichtian
~84–66 Ma
Lo Hueco titanosaur excavation.jpg
Excavation of a titanosaur at Lo Hueco
TypeGeological formation
Lithology
PrimaryMudstone
OtherSandstone, gypsum
Location
Coordinates [ ⚑ ] : 40°00′N 2°00′W / 40.0°N 2.0°W / 40.0; -2.0
Paleocoordinates [ ⚑ ] 30°42′N 0°36′W / 30.7°N 0.6°W / 30.7; -0.6
RegionCastilla-La Mancha
Country Spain
ExtentIberian Ranges
Type section
Named forVillalba de la Sierra
Villalba de la Sierra Formation is located in Spain
Villalba de la Sierra Formation
Villalba de la Sierra Formation (Spain)

The Villalba de la Sierra Formation is a Campanian to Maastrichtian geologic formation in Spain . Fossil dinosaur eggs have been reported from the formation, that comprises gypsiferous, grey, argillaceous mudstones and sandstones, deposited in a floodplain environment[1][2] characterised by high seasonality and variability in water availability.[3]

Fossil content

The formation has provided abundant titanosaurian remains, including Lohuecotitan were found in the formation.[4] More than 10,000 fossil remains of various fishes, amphibians, lizards, dinosaurs (Ampelosaurus sp., Rhabdodon sp.), turtles (Foxemys mechinorum, Iberoccitanemys convenarum), and crocodiles (Lohuecosuchus megadontos, Agaresuchus fontisensis, Musturzabalsuchus sp.) are also known from the site, one of the richest for the Late Cretaceous in Europe.[4][5]

See also

  • List of dinosaur-bearing rock formations
    • List of stratigraphic units with few dinosaur genera
      • Dinosaur eggs

References

  1. Lo Hueco, Fuentes (G1) at Fossilworks.org
  2. Weishampel et al., 2004, pp.517-607
  3. Peyrot, Daniel; Barroso-Barcenilla, Fernando; Cambra-Moo, Oscar (1 October 2013). "Paleoecology of the late Campanian/early Maastrichtian Fossil-Lagerstätte of "Lo Hueco" (Cuenca, Spain): Palynological insights". Palaeogeography, Palaeoclimatology, Palaeoecology 387: 27–39. doi:10.1016/j.palaeo.2013.07.005. https://www.sciencedirect.com/science/article/abs/pii/S003101821300326X. Retrieved 22 November 2022. 
  4. 4.0 4.1 Díez Díaz et al., 2016
  5. Ortega et al., 2015

Bibliography