| Zhidan Group | |
|---|---|
| Stratigraphic range: Early Cretaceous | |
| Type | Geological formation | 
| Sub-units | Luohandong Formation, Yijun Formation, Luohe Formation, Jingchuan Formation, Lamawan Formation, Hanhe-Huachi Formation | 
| Underlies | Tegaimiao Formation, Dongsheng Formation | 
| Overlies | Yuun Formation | 
| Location | |
| Region | Inner Mongolia | 
| Country | China | 
The Zhidan Group is a geological formation in China whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. [1]