Villalba de la Sierra Formation

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] Abundant titanosaurian remains, including Lohuecotitan were found in the formation.[3] 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.[3][4]

Villalba de la Sierra Formation Stratigraphic range: Campanian-Maastrichtian ~84–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Excavation of a titanosaur at Lo Hueco
Type	Geological formation
Lithology
Primary	Mudstone
Other	Sandstone, gypsum
Location
Coordinates	40.0°N 2.0°W / 40.0; -2.0
Approximate paleocoordinates	30.7°N 0.6°W / 30.7; -0.6
Region	Castilla-La Mancha
Country	Spain
Extent	Iberian Ranges
Type section
Named for	Villalba de la Sierra
Villalba de la Sierra Formation (Spain)

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. Díez Díaz et al., 2016
4. Ortega et al., 2015

Bibliography

• Díez Díaz, V.; Mocho, P.; Páramo, A.; Escaso, F.; Marcos-Fernández, F.; Sanz, J.L.; Ortega, F. (2016). "A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Lo Hueco (Cuenca, Spain)". Cretaceous Research. 68: 49–60. doi:10.1016/j.cretres.2016.08.001.
• Ortega, F.; Bardet, N.; Barroso-Barcenilla, F.; Callapez, P.M.; Cambra-Moo, O.; Daviero- Gómez, V.; Díez Díaz, V.; Domingo, L.; Elvira, A.; Escaso, F.; García-Oliva, M.; Gómez, B.; Houssaye, A.; Knoll, F.; Marcos-Fernández, F.; Martín, M.; Mocho, P.; Narváez, I.; Pérez- García, A.; Peyrot, D.; Segura, M.; Serrano, H.; Torices, A.; Vidal, D.; Sanz, J.L. (2015). "The biota of the Upper Cretaceous site of "Lo Hueco" (Cuenca, Spain)". Journal of Iberian Geology. 41 (1). doi:10.5209/rev_JIGE.2015.v41.n1.48657.
• Weishampel, David B.; Dodson, Peter; Osmólska, Halszka, eds. (2004). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 1–880. ISBN 0-520-24209-2. Retrieved 2019-02-21.