Earth:Rupelo Formation
| Rupelo Formation Stratigraphic range: Berriasian ~145–140 Ma | |
|---|---|
 La Pedraja tracksite in Mambrillas de Lara | |
| Type | Geological formation |
| Unit of | Tierra de Lara Group |
| Underlies | Valdeprado Formation |
| Overlies | Oncala Group Huérteles Formation |
| Area | ~1 km2 (0.39 sq mi) |
| Thickness | ~2 m (6.6 ft) |
| Lithology | |
| Primary | Mudstone |
| Other | Marl |
| Location | |
| Coordinates | [ ⚑ ] : 42°06′N 3°30′W / 42.1°N 3.5°W |
| Paleocoordinates | [ ⚑ ] 33°42′N 5°54′E / 33.7°N 5.9°E |
| Region | Mambrillas de Lara, Burgos, Castile and León |
| Country |  Spain |
| Extent | Restricted to northwesternmost Cameros Basin; Sierra de la Demanda |
| Type section | |
| Named for | Rupelo |
  Rupelo Formation (Spain)  Rupelo Formation (Castile and León) | |
The Rupelo Formation is an Early Cretaceous (Berriasian) geologic formation in the Burgos Province of Castile and León in northern Spain . The formation crops out near the municipality Mambrillas de Lara in the northwesternmost part of the Cameros Basin in the Sierra de la Demanda.[1]
Fossil sauropod tracks have been reported from the formation.[2] The formation was deposited under lacustrine conditions in a shallow carbonate lake, with some exposure events in the sedimentary sequence. Imprints of dinosaurs were made in carbonate mud, after they were infilled with marl. Dinosaur tracks have been assigned to sauropods, theropods and ornithopods.[3] An indeterminate titanosauriform sauropod humerus (MDS-VPCR, 214) has been found in the formation.[4]
The municipality of Mambrillas de Lara has created a dinosaur park.
Correlation
See also
- List of dinosaur-bearing rock formations
References
- ↑ González Acebrón et al., 2010, p.89
- ↑ Weishampel, et al., 2004, pp. 517-607
- ↑ Rupelo Formation at Fossilworks.org
- ↑ Torcida Fernández-Baldor, F.; Canudo, J. I.; Huerta, P. (2020-12-01). "New data on sauropod palaeobiodiversity at the Jurassic-Cretaceous transition of Spain(Burgos)" (in en). Journal of Iberian Geology 46 (4): 351–362. doi:10.1007/s41513-020-00145-w. ISSN 1886-7995. https://doi.org/10.1007/s41513-020-00145-w.
Bibliography
- González Acebrón, L.; J. Arribas, and R. Mas. 2010. Sand provenance and implications for paleodrainage in a rifted basin: the Tera Group (N. Spain). Journal of Iberian Geology 36. 87–106. Accessed 2019-10-10.
- 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
- Platt, N.H., and C.A. Meyer. 1991. Dinosaur footprints from the Lower Cretaceous of northern Spain: their sedimentological and palaeoecological context. Palaeogeography, Palaeoclimatology, Palaeoecology 86. 321-333.
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