Angostura Colorada Formation
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| Angostura Colorada Formation | |
|---|---|
| Stratigraphic range: Campanian-Maastrichtian | |
| Type | Geological formation |
| Underlies | Coli Toro Formation, Huitrera & Collón Cura Formations |
| Overlies | Sañicó Formation |
| Lithology | |
| Primary | Sandstone, claystone, conglomerate |
| 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 | Río Negro Province |
| Country | Argentina |
| Extent | Neuquén Basin, North Patagonian Massif |
| Type section | |
| Named by | Volkhaimer |
| Year defined | 1973 |
Angostura Colorada Formation (Argentina) | |
The Angostura Colorada Formation is a Campanian to Maastrichtian geologic formation of the Neuquén Basin and North Patagonian Massif in the Río Negro Province of Argentina. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]
Description
[edit | edit source]The Angostura Colorada Formation was defined by Volkhaimer in 1973 and unconformably overlies the Late Triassic volcanics of the Sañicó Formation. The formation is partly overlain by the Huitrera and Collón Cura Formations,[2] and in other parts by the Coli Toro Formation.[3] The formation, outcropping south of Comallo, comprises sandstones, claystones and conglomerates deposited in a fluvial environment.[4]
Paleofauna
[edit | edit source]- Abelisauridae indet.[5]
- Aeolosaurus rionegrinus[1]
- Hadrosauridae indet.
- Saltasaurinae indet.[6]
- Lithostrotia indet.[1]
- Parankylosauria indet. [7] (May actually be from Coli Toro Formation)
See also
[edit | edit source]References
[edit | edit source]- ^ a b c Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ Prez & Massaferro, 2013, p.223
- ^ Ottone, 2009, p.377
- ^ Prez & Massaferro, 2013, p.225
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Bibliography
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Further reading
[edit | edit source]- J. E. Powell. 1987. The Late Cretaceous fauna of Los Alamitos, Patagonia, Argentina part VI—the titanosaurids. Revista del Museo Argentina de Ciencias Naturales "Bernardino Rivadavia" e Instituto Nacional de Investigacion de las Ciencias Naturales: Paleontología 3(3):147-153