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Laguna Brava Formation

Coordinates: 28°30′S 68°48′W / 28.5°S 68.8°W / -28.5; -68.8
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Laguna Brava Formation
Stratigraphic range: Late Eocene (Tinguirirican)
TypeGeological formation
OverliesQuebrada Santo Domingo Formation
Lithology
PrimarySandstone, red beds, tuff
Location
Coordinates28°30′S 68°48′W / 28.5°S 68.8°W / -28.5; -68.8
Approximate paleocoordinates30°36′S 60°36′W / 30.6°S 60.6°W / -30.6; -60.6
RegionMendoza Province, Argentine Northwest
CountryArgentina
ExtentPrecordillera
Type section
Named forLaguna Brava
Laguna Brava Formation is located in Argentina
Laguna Brava Formation
Laguna Brava Formation (Argentina)

Laguna Brava Formation (Spanish: Formación Laguna Brava), formerly referred to as Santo Domingo Formation, is a Late Eocene (Tinguirirican in the SALMA classification) sedimentary formation located in the Argentine Northwest.[1] The formation contains beds with fossil bird tracks described as Gruipeda dominguensis.[2]

It was formerly thought that the formation was of Triassic age.[3]

References

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  1. ^ Quebrada de Santa Domingo at Fossilworks.org
  2. ^ Vizán, H.; Geuna, S.; Melchor, R.; Bellosi, E.S.; Lagorio, S.L.; Vásquez, C.; Japas, M.S.; Ré, G.; Do Campo, M. (2013), "Geological setting and paleomagnetism of the Eocene red beds of Laguna Brava Formation (Quebrada Santo Domingo, northwestern Argentina)", Tectonophysics, 583: 105–123, Bibcode:2013Tectp.583..105V, doi:10.1016/j.tecto.2012.10.026, hdl:11336/84532
  3. ^ Melchor, Ricardo M.; de Valais, Silvina; Genise, Jorge F. (2013), "Retraction: Bird-like fossil footprints from the Late Triassic", Nature, 501 (7466): 262, Bibcode:2013Natur.501..262M, doi:10.1038/nature12497, PMID 23925120