| Yanigua Formation | |
|---|---|
| Stratigraphic range: Miocene | |
| Type | Formation |
| Lithology | |
| Primary | Claystone, marl |
| Other | Dominican amber |
| Location | |
| Coordinates | 18°48′N 69°42′W / 18.8°N 69.7°W |
| Approximate paleocoordinates | 18°42′N 68°36′W / 18.7°N 68.6°W |
| Country |  Dominican Republic |
| Type section | |
| Named for | Yanigua mine |
  Yanigua Formation (the Dominican Republic) | |
The Yanigua Formation is a geologic formation in Dominican Republic. The lagoonal claystones and marls preserve fossils dating back to the Miocene period.[1] The formation hosts Dominican amber.