Huachihuanhe Formation
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| Hanhe-Huachi Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Zhidan Group |
| Underlies | Luohan Formation |
| Overlies | Luohe Formation |
| Thickness | 400-500 metres |
| Lithology | |
| Primary | Mudstone, sandstone |
| Location | |
| Region | Gansu |
| Country | China |
The Hanhe-Huachi formation, also called Huachi-Hanhe formation is a geologic formation in China. It is Early Cretaceous, probably Hauterivian, in age.[1] The Pterosaur Huanhepterus has been recovered from the formation.
