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Huachihuanhe Formation 
Summary
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.
| 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 |
See also edit
Footnotes edit
- ^ Zhang, Mingzhen; Dai, Shuang; Zhang, Xianwen; Wang, Sen; Du, Zhen; Ma, Bo; Du, Baoxia (2020-10-07). "Conifer‐dominant palynoflora from the Lower Cretaceous in Ordos Basin, China: Biostratigraphical and palaeoclimatic implications". Geological Journal. 56 (3): 1549–1563. doi:10.1002/gj.4015. ISSN 0072-1050. S2CID 225171769.