Lagarcito Formation

The Lagarcito Formation is an Albian geologic formation in Argentina. Pterosaur fossils have been recovered from the formation. The formation overlies the La Cruz Formation and is overlain by the San Roque Formation. The sandstones and mudstones of the formation were deposited in a fluvial and mostly lacustrine environment.[1] The fossil association and the geological evidence indicate that the Lagarcito Formation represents a perennial shallow lake situated in an alluvial plain where detrital sedimentation and semiarid climatic conditions predominated.[2]

Lagarcito Formation
Stratigraphic range: Albian
TypeGeological formation
UnderliesSan Roque Formation
OverliesLa Cruz Formation
Lithology
PrimarySandstone
OtherMudstone
Location
Coordinates32.5°S 67.0°W / -32.5; -67.0
Approximate paleocoordinates38.0°S 38.7°W / -38.0; -38.7
RegionSan Luis Province
Country Argentina
ExtentMarayes-El Carrizal Basin
Lagarcito Formation (Argentina)

Fossil content

late Early Cretaceous (105 Ma)

The following fossils have been found in the Lagarcito Formation:[3]

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See also

References

Bibliography

Further reading

  • A. López-Arbarello and L. Codorniú. 2007. Semionotids (Neopterygii, Semionotiformes) from the Lower Cretaceous Lagarcito Formation, San Luis Province, Argentina. Journal of Vertebrate Paleontology 27(4):811-826
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