Xinlong Formation
| Xinlong Formation | |
|---|---|
| Stratigraphic range: ?Aptian-Albian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Conglomerate, marl |
| Location | |
| Coordinates | 22°36′N 107°54′E / 22.6°N 107.9°E |
| Approximate paleocoordinates | 23°12′N 116°06′E / 23.2°N 116.1°E |
| Region | Guangxi |
| Country | China |
The Xinlong Formation (sometimes called the "Napai Formation", or misspelt as "Napan Formation") is an Early Cretaceous geologic formation in Guangxi, southern China.
Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.