Urbión Group
| Urbión Group | |
|---|---|
Ma | |
La Rioja | |
| Country |  Spain |
| Extent | Cameros Basin, Sierra de la Demanda |
| Type section | |
| Named for | Picos de Urbión |
  Urbión Group (Spain) | |
The Urbión Group is a geological
Dinosaur remains are among the fossils that have been recovered from the formation.[2]
Description
The Urbión Group, named after the
The contact with the overlying Enciso Group is exposed at the Presa Enciso tracksite.[1][3]
Fossil content
Demandasaurus darwini
The fossil bones of
The sediments of the Tenadas de los Vallejos II quarry belong to the
The Tenadas de los Vallejos II site was discovered in 1999 during prospection work carried out by the Archaeological−Palaeontological Group of Salas de los Infantes (Colectivo Arqueológico−Paleontológico de Salas de los Infantes, CAS).
Ten caudal vertebrae, a haemal arch, two ischia and a femur, as well as bone fragments were collected in the site. Excavations were carried out during the years 2002–2004, covering a surface area of some 240 square metres (2,600 sq ft). Approximately 810 skeletal elements and bone fragments were recovered, and most of them belong to a single specimen of rebbachisaurid sauropod. The remains were found disarticulated in the same bed and in close proximity to each other. The neural arches of the vertebrae are firmly co−ossified to the centra. There are no anatomically repeated elements, and the bones correspond presumably to a single individual. The relative size of the bones suggests a medium−sized individual whose total length was approximately 10 to 12 metres (33 to 39 ft). In addition, several vertebral centra and femur fragments from a small
Other fossils
Among others, the following fossils have been reported from the Urbión Group:[5]
- Chitracephalus dumonii - Pinilla de los Moros Formation
- Larachelus morla - Pinilla de los Moros Formation
- Europatitan eastwoodi - Castrillo de la Reina Formation
- Goniopholis sp.
- Lepidotes sp.
- Polacanthus sp.
- Baryonychinae indet.
- Crocodyliformes indet.
- Hypsilophodontidae indet.
- Iguanodontia indet.
- Rhabdodontidae indet.
- Testudines indet.
- ichnofossils
Correlation
See also
- List of dinosaur-bearing rock formations
References
- ^ a b Melero Rubio & Pérez Lorente, 2011, p.31
- ^ Weishampel et al., 2004, pp.556-563
- ^ Presa de Enciso tracksite (2PRE) at Fossilworks.org
- ^ Torcida et al., 2011, p.537
- ^ Urbión Group at Fossilworks.org
Bibliography
- Melero Rubio, M., and F. Pérez Lorente. 2011. Huellas en las obras. Reconocimiento y estudio de huellas fósiles de dinosaurio en las obras de la presa de Enciso (La Rioja. España) - Footprints in the works. Recognition and study of fossil dinosaur footprints in the works of the Enciso dam (La Rioja. Spain). Zubía 29. 31-60. Accessed 2019-10-12.
- Torcida Fernández-Baldor, F.; J.I. Canudo; P. Huerta; D. Montero; X. Pereda Suberbiola, and L. Salgado. 2011. Demandasaurus darwini, a new rebbachisaurid sauropod from the Early Cretaceous of the Iberian Peninsula. Acta Palaeontologica Polonica 56. 535–552. Accessed 2019-10-09.
Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License. - ISBN 0-520-24209-2
Further reading
- A. Pérez-García and X. Murelaga. 2012. Larachelus morla, gen. et sp. nov., a new member of the little-known European Early Cretaceous record of stem cryptodiran turtles. Journal of Vertebrate Paleontology 32(6):1293-1302
- P. Ansorena, I. Díaz Martínez, and F. Pérez Lorente. 2008. Mina Victoria (Navajún) y Valdeperillo (Cornago). Nuevos yacimientos de icnitas de dinosaurio en El Grupo de Urbión (Cuenca de Cameros. La Rioja. España) [Mina Victoria (Navajún) and Valdeperillo (Cornago). New dinosaur footprint localities in the Urbión Group (Cameros Basin. La Rioja. Spain)]. Zubía 25–26:75-96
- F. Torcida Fernández Baldor. 2005. Los dinosaurios de Castilla y León [The dinosaurs of Castilla y León]. Patrimonio Histórico de Castilla y León 6(23):23-34
- J. I. Ruiz Omeñaca and J. I. Canudo. 2003. Dinosaurios (Saurischia, Ornithischia) en el Barremiense (Cretácico Inferior) de la península Ibérica [Dinosaurs (Saurischia, Ornithischia) in the Barremian (Lower Cretaceous) of the Iberian peninsula]. In F. Pérez Lorente (ed.), Dinosaurios y Otros Reptiles Mesozóicos de España 269-312
- F. Torcida Fernández, L. A. Izquierdo Montero, P. Huerta Hurtado, D. Montero Huerta, and G. Pérez Martínez. 2003. Dientes de dinosaurios (Theropoda, Sauropoda), en el Cretácico Inferior de Burgos (España) [Teeth of dinosaurs (Theropoda, Sauropoda), in the Lower Cretaceous of Burgos (Spain)]. In F. Pérez Lorente, M. M. Romero Molina & P. Rivas Carrera (eds.), Dinosaurios y Otros Reptiles Mesozoicos en España. Congreso Internacional sobre Dinosaurios y otros Reptiles Mesozoicos en España, Logroño 335-346
- F. Pérez Lorente. 2002. La distribución de yacimientos y de tipos de huellas de dinosaurios en la Cuenca de Cameroa (La Rioja, Burgos, Soria, España) [The distribution of localities and types of dinosaur footprints in the Cameros Basin (La Rioja, Burgos, Soria, Spain)]. Zubia Monográfico 14:191-210
- X. Pereda Suberbiola, M. Meijide, F. Torcida, J. Welle, C. Fuentes, L. A. Izquierdo, D. Montero, G. Pérez, and V. Urién. 1999. Espinas dermicas del dinosaurio anquilosaurio Polacanthus en las facies Weald de Salas de los Infantes (Burgos, España) [Dermal spines of the ankylosaurian dinosaur Polacanthus in the Weald facies of Salas de los Infantes (Burgos, Spain)]. Estudios Geológicos 55:267-272
- F. Ortega, J. J. Moratalla, A.G. Buscalioni, J. S. Sanz, S. Jiménez and J. Valbuena. 1996. Sobre la presencia de un cocodrilo fósil (Crocodylomorpha: Neosuchia: Goniopholis sp.) en la Cuenca de Cameros (Cretácico inferior: Vadillos-San Román de Cameroa, La Rioja). Zubía 14:113-120