| Pacacua Formation | |
|---|---|
| Stratigraphic range: Oligocene | |
| Type | Formation |
| Location | |
| Country |  Costa Rica |
The Pacacua Formation is a geologic formation in Costa Rica. It preserves fossils dating back to the Paleogene period.[1]
- ^ A, Teresita Aguilar (1984). "Presencia de esponjas (Porifera) en el Oligoceno de Costa Rica (Valle Central)". Revista geológica de América central (in Spanish). 1. doi:10.15517/rgac.v0i01.10467. ISSN 2215-261X.