| Zhuganpo Formation | |
|---|---|
| Stratigraphic range: Upper Ladinian - Lower Carnian | |
| Type | Geological formation |
| Underlies | Xiaowa Formation |
| Overlies | Yangliujing Formation |
| Lithology | |
| Primary | limestone, marl |
| Location | |
| Region | Guizhou Province, Yunnan Province |
| Country | China |
| Extent | Yunnan–Guizhou Plateau |
The Zhuganpo Formation is a Triassic geologic unit found in southern China. It has historically been known as the Zhuganpo Member of the Falang Formation. A diverse fossil assemblage known as the Xingyi biota or Xingyi Fauna can be found in the upper part of the Zhuganpo Formation. Fossils of the Xingyi biota include articulated skeletons of marine reptiles, abundant fish, and a plentiful assortment of invertebrates indicating a Ladinian to Carnian age for the sediments of the formation.[1][2]