| On Gong Formation | |
|---|---|
| Stratigraphic range: Early Cretaceous | |
| Type | Geological formation |
| Location | |
| Region | Inner Mongolia |
| Country |  China |
The On Gong Formation is a Mesozoic geologic formation in China. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]
