| 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]
- ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 563-570. ISBN 0-520-24209-2.