| Caimito Formation | |
|---|---|
| Stratigraphic range: Late Oligocene-Early Miocene | |
| Type | Formation |
| Underlies | Alajuela & Gatún Formations |
| Overlies | Bohío, Caraba & Gatuncillo Formations, Cretaceous basement |
| Lithology | |
| Primary | Marl |
| Other | Siltstone, sandstone, conglomerate |
| Location | |
| Coordinates | 9°12′N 79°48′W / 9.2°N 79.8°W / 9.2; -79.8 |
| Approximate paleocoordinates | 7°42′N 77°30′W / 7.7°N 77.5°W / 7.7; -77.5 |
| Region | Panamá Province |
| Country |  Panama |
| Extent | Panama Basin |
| Type section | |
| Named for | Caimito Junction of Panama Railroad |
| Named by | MacDonald |
| Year defined | 1913 |
  Caimito Formation (Panama) | |
The Caimito Formation (Tcm) 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. 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.
See also
References
- Geologic Map, 1980
- Caimito Formation at Fossilworks.org
- Woodring, 1957, p.28
Bibliography
- 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