Grès supérieurs Formation
| Grès supérieurs Formation | |
|---|---|
| Stratigraphic range: Aptian-Albian ~ | |
| Type | Geological formation |
| Unit of | Indosinias Group, equivalent with units of Khorat Group |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Siltstone |
| Location | |
| Coordinates | 17°00′N 106°00′E / 17.0°N 106.0°E |
| Approximate paleocoordinates | 18°00′N 112°36′E / 18.0°N 112.6°E |
| Region | Savannakhet Province |
| Country | Laos |
| Extent | Savannakhet Basin |
| Type section | |
| Named for | "Upper sandstone" |
The Grès supérieurs Formation (French for "Upper sandstone") is a geological formation in Laos whose strata date back to the Aptian to Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. It is equivalent to the Khok Kruat Formation of Thailand.