Cercado Formation

Cercado Formation
Stratigraphic range: Late Miocene-Early Pliocene
Type	Group
Overlies	Baitoa Formation
Lithology
Primary	Siltstone, limestone, claystone
Other	Sandstone, conglomerate
Location
Coordinates	19°30′N71°18′W / 19.5°N 71.3°W / 19.5; -71.3
Approximate paleocoordinates	19°18′N70°42′W / 19.3°N 70.7°W / 19.3; -70.7
Country	Dominican Republic
Cercado Formation (the Dominican Republic)

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]

See also

• List of fossiliferous stratigraphic units in the Dominican Republic

References

1. 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