# Caimito Formation

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The **Caimito Formation** (Tcm)[1] is a [geologic formation](/source/Formation_(geology)) in [Panama](/source/Panama). The [marls](/source/Marl), [sandstones](/source/Sandstone) and [conglomerates](/source/Conglomerate_(geology)) preserve [bivalve](/source/Bivalve) and [gastropod](/source/Gastropod) [fossils](/source/Fossils) dating back to the [Late Oligocene](/source/Late_Oligocene) to [Early Miocene](/source/Early_Miocene) [period](/source/Period_(geology)).[2] The name Caimito was proposed by MacDonald in 1913, named after the Caimito junction in the [Panama Railroad](/source/Panama_Railroad) during the construction of the [Panama Canal](/source/Panama_Canal).[3]

## See also

- [List of fossiliferous stratigraphic units in Panama](/source/List_of_fossiliferous_stratigraphic_units_in_Panama)

## References

1. Geologic Map, 1980

1. [Caimito Formation](https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Caimito&group_formation_member=Caimito) at [Fossilworks](/source/Fossilworks).org

1. Woodring, 1957, p.28

### Bibliography

- Stewart, R.H.; Stewart, J.L.; Woodring, W.P. (1980), ["Geologic Map of the Panama Canal and Vicinity"](https://pubs.usgs.gov/pp/0306f/plate-1.pdf), [USGS](/source/United_States_Geological_Survey), 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)"](https://pubs.usgs.gov/pp/0306a/report.pdf), [USGS](/source/United_States_Geological_Survey), pp. 1–186, retrieved 2019-02-09

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