| Yanigua Formation | |
|---|---|
| Stratigraphic range: Miocene | |
| Type | Formation |
| Lithology | |
| Primary | Claystone, marl |
| Other | Dominican amber |
| Location | |
| Coordinates | 18°48′N69°42′W / 18.8°N 69.7°W / 18.8; -69.7 |
| Approximate paleocoordinates | 18°42′N68°36′W / 18.7°N 68.6°W / 18.7; -68.6 |
| Country | Dominican Republic |
| Type section | |
| Named for | Yanigua mine |
The Yanigua Formation is a geologic formation in Dominican Republic. The lagoonalclaystones and marls preserve fossils dating back to the Mioceneperiod.[1] The formation hosts Dominican amber.