Fray Bentos Formation
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| Fray Bentos Formation | |
|---|---|
| Stratigraphic range: Deseadan ~ | |
| Type | Geological formation |
| Unit of | Paysandú Group |
| Underlies | Raigón Formation |
| Overlies | Asencio Formation |
| Lithology | |
| Primary | sandstone |
| Other | siltstone |
| Location | |
| Country | Uruguay, Argentina |
| Extent | Paraná Basin |
| Type section | |
| Named for | Fray Bentos |
| Named by | Bossi |
| Year defined | 1966 |
The Fray Bentos Formation is a Deseadan[1] geologic formation of the Paysandú Group in Uruguay and portions of Argentina,[2] corresponding to the Paraná Basin.[3][4] It is composed of calcareous sandstones and siltstones with a pinkish-orange coloration. It outcrops in southwestern Uruguay (Canelones and Soriano Departments), the central and southeastern part of the province of Corrientes and northeast Entre Ríos.
Fossil content
[edit | edit source]The following fossils have been reported from the formation:
- Mammals
- Argyrohyrax[5]
- Cephalomyidae[6]
- Eopachyrucos[7][8]
- Fiandraia[9]
- Proborhyaena[9]
- Prohegetotherium schiaffinoi[10]
- Protypotherium[9]
- Scarrittia robusta[11]
- Uruguaytherium beaulieui[12]
- Birds
See also
[edit | edit source]References
[edit | edit source]- ^ Fray Bentos Formation at Fossilworks.org
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Bond et al., 1998, p.42
- ^ Tófalo & Morrás, 2009, p.680
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- ^ Cephalomyidae at Fossilworks.org
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- ^ Prohegetotherium schiaffinoi at Fossilworks.org
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Uruguaytherium beaulieui at Fossilworks.org
- ^ Devincenzia gallinali at Fossilworks.org
- ^ Devincenzia pozzi at Fossilworks.org
Bibliography
[edit | edit source]- D. Perea, P. Toriño, and M. R. Ciancio. 2014. La presencia del Xenartro Palaeopeltis inornatus Ameghino, 1894, en la Formación Fray Bentos (Oligoceno Tardío), Uruguay. Ameghiniana 51(3):254-258
- M. Ubilla, D. Perea, and M. Bond. 1994. The Deseadan Land Mammal Age in Uruguay and the report of Scarrittia robusta nov. sp. (Leontiniidae, Notoungulata) in the Fray Bentos Formation (Oligocene - ? Lower Miocene). Geobios 27(1):95-102
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Categories:
- Fray Bentos Formation
- Geologic formations of Uruguay
- Geologic formations of Argentina
- Miocene Series of South America
- Oligocene Series of South America
- Neogene Uruguay
- Paleogene Uruguay
- Neogene Argentina
- Paleogene Argentina
- Deseadan
- Fossiliferous stratigraphic units of South America
- Paleontology in Uruguay
- Paleontology in Argentina
- Geography of Canelones Department
- Geography of Soriano Department
- Geography of Corrientes Province
- Geography of Entre Ríos Province
- Uruguay geography stubs
- South American geologic formation stubs