The Caimito Formation (Tcm)[1] is a geologic formation in Panama. The marls, sandstones and conglomerates preserve bivalve and gastropod fossils dating back to the Late Oligocene to Early Miocene period.[2] The name Caimito was proposed by MacDonald in 1913, named after the Caimito junction in the Panama Railroad during the construction of the Panama Canal.[3]

Caimito Formation
Stratigraphic range: Late Oligocene-Early Miocene
TypeFormation
UnderliesAlajuela & Gatún Formations
OverliesBohío, Caraba & Gatuncillo Formations, Cretaceous basement
Lithology
PrimaryMarl
OtherSiltstone, sandstone, conglomerate
Location
Coordinates9°12′N 79°48′W / 9.2°N 79.8°W / 9.2; -79.8
Approximate paleocoordinates7°42′N 77°30′W / 7.7°N 77.5°W / 7.7; -77.5
RegionPanamá Province
Country Panama
ExtentPanama Basin
Type section
Named forCaimito Junction of Panama Railroad
Named byMacDonald
Year defined1913
Caimito Formation is located in Panama
Caimito Formation
Caimito Formation (Panama)

See also

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References

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  1. ^ Geologic Map, 1980
  2. ^ Caimito Formation at Fossilworks.org
  3. ^ Woodring, 1957, p.28

Bibliography

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  • Stewart, R.H.; Stewart, J.L.; Woodring, W.P. (1980), Geologic Map of the Panama Canal and Vicinity (PDF), USGS, p. 1, retrieved 2019-02-09
  • Woodring, W.P (1957), Geology and Paleontology of Canal Zone and Adjoining Parts of Panama - 306A Geology and description of Tertiary mollusks (Gastropods: Trochidae to Turritellidae) (PDF), USGS, pp. 1–186, retrieved 2019-02-09