Earth:Fray Bentos Formation

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Short description: Geologic formation in Uruguay
Fray Bentos Formation
Stratigraphic range: Deseadan
~29.0–21.0 Ma
TypeGeological formation
Unit ofPaysandú Group
UnderliesRaigón Formation
OverliesAsencio Formation
Lithology
Primarysandstone
Othersiltstone
Location
Country Uruguay
 Argentina
ExtentParaná Basin
Type section
Named forFray Bentos
Named byBossi
Year defined1966
Fray Bentos Formation is located in Uruguay
Fray Bentos Formation
Fray Bentos Formation
Fray Bentos Formation
Fray Bentos Formation
Fray Bentos Formation, Uruguay

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

The following fossils have been reported from the formation:

Mammals
Birds
  • Devincenzia gallinali[13]
  • Devincenzia pozzi[14]

See also

  • List of fossiliferous stratigraphic units in Uruguay

References

  1. Fray Bentos Formation at Fossilworks.org
  2. Benvenuto, Andrés (2017). "Arquitectura de facies y ambientes deposicionales de la Formación Fray Bentos (Oligoceno) en Uruguay" (in es). https://www.csic.edu.uy/content/arquitectura-de-facies-y-ambientes-deposicionales-de-la-formaci%C3%B3n-fray-bentos-oligoceno-en. 
  3. Bond et al., 1998, p.42
  4. Tófalo & Morrás, 2009, p.680
  5. Hernández Del Pino, Santiago; Seoane, Federico; Cerdeño, Esperanza (2022). "New craniodental information and taxonomic decisions of the typotherians (Notoungulata) from the late Oligocene of Mendoza, central-western Argentina" (in en). Acta Palaeontologica Polonica 67. doi:10.4202/app.00974.2022. ISSN 0567-7920. https://doi.org/10.4202/app.00974.2022. 
  6. Cephalomyidae at Fossilworks.org
  7. Dozo, María Teresa; Ciancio, Martín; Bouza, Pablo José; Martínez, Gastón (2014). "New association of Paleogene Mammals in Eastern of Patagonia (Chubut Province, Argentina): biochronological and paleobiogeographical implications.". Andean Geology 41 (1). doi:10.5027/andgeoV41n1-a09. http://www.andeangeology.cl/index.php/revista1/article/view/V41n1-a09/html. 
  8. Reguero, Marcelo A.; Ubilla, Martín; Perea, Daniel (2003-06-17). [0445:ANSOEM2.0.CO;2 "A new species of Eopachyrucos (Mammalia, Notoungulata, Interatheriidae) from the Late Oligocene of Uruguay"]. Journal of Vertebrate Paleontology 23 (2): 445–457. doi:10.1671/0272-4634(2003)023[0445:ANSOEM2.0.CO;2]. ISSN 0272-4634. https://doi.org/10.1671/0272-4634(2003)023[0445:ANSOEM]2.0.CO;2. 
  9. 9.0 9.1 9.2 Mones, A.; Ubilla, M. (1978). "La Edad Deseadense (Oligoceno inferior) de la Formación Fray Bentos y su contenido paleontológico, con especial referencia a la presencia de Proborhyaena cf. gigantea Ameghino (Marsupialia: Borhyaenidae) en el Uruguay. Nota preliminar.". Comunicaciones Paleontológicas del Museo de Historia Natural de Montevideo 7 (1): 151–158. https://www.researchgate.net/publication/36891196. 
  10. Prohegetotherium schiaffinoi at Fossilworks.org
  11. Scarrittia at Fossilworks.org
  12. Uruguaytherium beaulieui at Fossilworks.org
  13. Devincenzia gallinali at Fossilworks.org
  14. Devincenzia pozzi at Fossilworks.org

Bibliography