Cercado Formation
The Cercado Formation is a geologic group in Dominican Republic. The formation comprises siltstones, limestones, claystones, sandstones and conglomerates deposited in a shallow marine to reef environment. The Cercado Formation, unconformably overlying the Baitoa Formation, preserves bivalve, gastropod, decapod and coral fossils dating back to the Late Miocene to Early Pliocene period.[1]
| Cercado Formation | |
|---|---|
| Stratigraphic range: Late Miocene-Early Pliocene | |
| Type | Group |
| Overlies | Baitoa Formation |
| Lithology | |
| Primary | Siltstone, limestone, claystone |
| Other | Sandstone, conglomerate |
| Location | |
| Coordinates | 19.5°N 71.3°W |
| Approximate paleocoordinates | 19.3°N 70.7°W |
| Country |  Dominican Republic |
  Cercado Formation (the Dominican Republic) | |
References
- Cercado Formation at Fossilworks.org
Further reading
- A. F. Budd and K. G. Johnson. 1999. Origination preceding extinction during late Cenozoic turnover of Caribbean reefs. Paleobiology 25(2):188-200
- M. J. Rathbun. 1920. Additions to West Indian Tertiary Decapod Crustaceans. Proceedings of the United States National Museum 58:381-384
- J. B. Saunders, P. Jung, and B. Biju-Duval. 1986. Neogene Paleontology in the Northern Dominican Republic: 1. Field Surveys, Lithology, Environment, and Age. Bulletins of American Paleontology 89(323):1-79
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