| 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′N 71°18′W / 19.5°N 71.3°W |
| Approximate paleocoordinates | 19°18′N 70°42′W / 19.3°N 70.7°W |
| 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]