| Nanxiong Formation | |
|---|---|
| Stratigraphic range: Maastrichtian | |
| Type | Geological formation |
| Underlies | Shanghu Formation |
| Overlies | Jurassic granite basement, Changba Formation (Nanxiong Group) |
| Thickness | ~300 m (980 ft) Several kilometers (Nanxiong Group) |
| Lithology | |
| Primary | Sandstone, siltstone, mudstone |
| Other | Limestone, conglomerate |
| Location | |
| Coordinates | 23°30′N 114°54′E / 23.5°N 114.9°E |
| Approximate paleocoordinates | 23°48′N 110°30′E / 23.8°N 110.5°E |
| Region | Guangdong Province |
| Country |  China |
| Extent | Nanxiong Basin |
  Nanxiong Formation (China)  Nanxiong Formation (Guangdong) | |
The Nanxiong Formation (also known as Yuanpu Formation) is a Late Cretaceous geologic formation in Guangdong Province. Dinosaur remains are among the fossils that have been recovered from the formation.