Rayoso Formation
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| Rayoso Formation | |
|---|---|
| Stratigraphic range: Aptian-Albian, ~ | |
| Type | Geological formation |
| Unit of | Huitrín-Rayoso Group |
| Sub-units | Pichi Neuquén Member |
| Underlies | Lohan Cura and Carrín Cura Formations |
| Overlies | La Amarga and Huitrín Formations |
| Thickness | up to 604 m (1,982 ft) |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | Neuquén Province |
| Country | Argentina |
| Extent | Neuquén Basin |
  Rayoso Formation (Argentina) | |
The Rayoso Formation is a geological formation in the Neuquén Province of Argentina whose strata date back to the Aptian-Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
Description
[edit | edit source]The formation has a maximum thickness of 604 metres (1,982 ft) and has one member, the Pichi Neuquén Member. The unit comprises sandstones deposited in a lacustrine environment.[2]
Fossil content
[edit | edit source]Indeterminate ceratosaurian remains located in Neuquén Province, Argentina.[1]
| Dinosaurs of the Rayoso Formation | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
| Ceratosauria indet. | Indeterminate | Neuquén Province | ||
| Lavocatisaurus | L. agrioensis | Neuquén Province | Specimens representing several individuals at one site, including two juveniles and an adult | |
| Rayososaurus | R. agrioensis | Neuquén Province | Two partial scapulae, most of the left femur, and the proximal half of the left fibula | |
See also
[edit | edit source]References
[edit | edit source]- ^ a b Weishampel et al., 2004, "Dinosaur distribution (Early Cretaceous, South America).", pp.570-571
- ^ 3 km south of Agrio del Medio at Fossilworks.org
Bibliography
[edit | edit source]- Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
Further reading
[edit | edit source]
Wikimedia Commons has media related to Rayoso Formation.
- J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130
- L. Salgado, J. I. Canudo, A. C. Garrido and J. L. Carballido. 2012. Evidence of gregariousness in rebbachisaurids (Dinosauria, Sauropoda, Diplodocoidea) from the Early Cretaceous of Neuquén (Rayoso Formation), Patagonia, Argentina. Journal of Vertebrate Paleontology 32(3):603-613