Arén Formation
The Arén Formation or Arén Sandstone (Catalan: Calcàries i gresos d’Areny)[1] is a geological formation in the Tremp-Graus Basin around Arén, Catalonia, Spain whose strata date back to the Late Cretaceous.[2] Dinosaur remains are among the fossils that have been recovered from the formation.[3] The formation dates to the Campanian to Maastrichtian and underlies the Tremp Group.
| Arén Formation | |
|---|---|
| Stratigraphic range: Campanian-Maastrichtian ~ | |
| Type | Geological formation |
| Unit of | Tremp-Graus Basin |
| Underlies | Tremp Group |
| Lithology | |
| Primary | Sandstone |
| Other | Limestone |
| Location | |
| Coordinates | 42.3°N 1.6°E |
| Approximate paleocoordinates | 34.0°N 1.6°E |
| Region | Lérida |
| Country |  Spain |
| Type section | |
| Named for | Arén |
  Arén Formation (Spain)  Arén Formation (Catalonia) | |
Fossil content
Dinosaurs
Paleogeography of the Maastrichtian and distribution of titanosaur nesting sites
Dinosaur eggs (Megaloolithus baghensis,[4] Sankofa pyrenaica),[5] sauropod tracks, unnamed sauropod remains, theropod tracks, euornithopod tracks, and an unnamed iguanodont remains present in Lérida Province.
| Dinosaurs of the Arén Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Ricardoestesia[6] | Indeterminate[6] | Lérida[7] | ||||
| Hypselosaurus[7] | Indeterminate[7] | Lérida[7] | Later found to be unknown sauropod remains[7] | |||
| Orthomerus[7] | Indeterminate[7] | Lérida[7] | ||||
| Pararhabdodon[7] | P. isonensis[7] | Lérida[7] |  | |||
| Rhabdodon[7] | R. priscus[7] | Lérida[7] |  | |||
| Titanosaurus[8] | T. indicus[8] | Lérida[7] | Later found to be indeterminate sauropod remains[7] | |||
References
- Arengol Segú, 2014, p.31
- Arén Formation at Fossilworks.org
- Weishampel et al., 2004, pp.588-593
- Prieto Márquez et al., 2001
- López Martínez & Vicens, 2012
- Listed as "cf. Ricardoestesia sp." in "15.8 Provincia de Lleida, Spain; 1. Arén Formation," in Weishampel, et al. (2004). Page 591.
- "15.8 Provincia de Lleida, Spain; 1. Arén Formation," in Weishampel, et al. (2004). Page 591.
- Listed as "Titanosaurus cf. indicus" in "15.8 Provincia de Lleida, Spain; 1. Arén Formation," in Weishampel, et al. (2004). Page 591.
Bibliography
- Arengol Segú, Àngels. 2014. Guia de camp - TRANSCATALÒNIA 2014 - Comarca del Pallars Jussà (Conca Dellà i de Tremp), 1–82. Delegació Territorial de Catalunya. Accessed 2020-07-14.
- López Martínez, N., and E. Vicens. 2012. A new peculiar dinosaur egg, Sankofa pyrenaica oogen. nov. oosp. nov. from the Upper Cretaceous coastal deposits of the Aren Formation, South-Central Pyrenees, Lleida, Catalonia, Spain. Palaeontology 55. 325–339. .
- 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
- Prieto Márquez, A.; R. Gaete; A. Galobart, and L. Ardèvol. 2001. A Richardoestesia-like theropod tooth from the Late Cretaceous foredeep, south-central Pyrenees, Spain. Eclogae Geologicae Helveticae 93. 497–501. Accessed 2020-07-14.
Further reading
- N. López Martínez. 2000. Eggshell sites from the Cretaceous-Tertiary transition in south-central Pyrenees (Spain). In A. M. Bravo & T. Reyes (ed.), First International Symposium on Dinosaur Eggs and Babies, Extended Abstracts 95-115
- P. M. Sander, C. Peitz, J. Gallemi and R. Cousin. 1998. Dinosaurs nesting on a red beach?. Comptes Rendus de l'Académie des Sciences de Paris: Sciences de la Terre et des Planètes 327:67-74
- J. Gallemi, R. Martinez, and J. M. Pons. 1983. Coniacian-Maastrichtian of the Tremp Area (South Central Pyrenees). Newsletters on Stratigraphy 12(1):1-17
- A. Liebau. 1973. El Maastrichtiense lagunar ("Garumniense") de Isona [The lagoonal Maastrichtian ("Garumnian") of Isona]. XIII Coloquio Europeo de Micropaleontología 87-112
- J. Rosell. 1967. Estudio geológico del sector del prepirineo comprendido entre los ríos Segre y Noguera Ribagorzana (Provincia de Lérida) [Geological study of the pre-Pyrenean sector between the Segre and Noguera Ribagorzana rivers (Lérida province)]. Pirineos 21(75–78):5-225
- A. F. d. Lapparent and E. Aguirre. 1956. Algunos yacimientos de Dinosaurios en el Cretácico Superior de la Cuenca de Tremp [Some dinosaur localities in the Upper Cretaceous of the Termp Basin]. Estudios Geológicos 12(31/32):377-382
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