Hiló Formation
| Hiló Formation | |
|---|---|
| Stratigraphic range: Late Albian-Early Cenomanian ~ | |
| Type | Geological formation |
| Unit of | Villeta Group |
| Underlies | Simijaca Formation |
| Overlies | Capotes Formation |
| Thickness | more than 470 metres (1,540 ft) |
| Lithology | |
| Primary | Shale |
| Other | Sandstone, limestone, siltstone |
| Location | |
| Coordinates | 4°47′28″N 74°30′49″W / 4.79111°N 74.51361°W |
| Region | Altiplano Cundiboyacense Eastern Ranges, Andes |
| Country | Colombia |
| Type section | |
| Named for | Caserío Boquerón de Hiló |
| Named by | Hubach |
| Location | Apulo-Anapoima |
| Year defined | 1931 |
| Coordinates | 4°47′28″N 74°30′49″W / 4.79111°N 74.51361°W |
| Approximate paleocoordinates | 0°36′N 45°18′W / 0.6°N 45.3°W |
| Region | Cundinamarca, Tolima |
| Country | Colombia |
| Thickness at type section | 470 m (1,540 ft) |
Paleogeography of Northern South America 105 Ma, by Ron Blakey | |
The Hiló Formation (Spanish: Formación Hiló, Kih) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly shale formation dates to the Middle Cretaceous period; Late Albian to Early Cenomanian epochs and has a measured thickness at its type section of 470 metres (1,540 ft). The fossiliferous formation has provided a great abundance of ammonites and other marine species.