Chuanlinggou Formation
| Chuanlinggou Formation | |
|---|---|
| Stratigraphic range: 1641.7 ± 1.2 Ma | |
| Type | Formation | 
| Underlies | Tuanshanzi Formation | 
| Overlies | Changzhougou Formation | 
| Location | |
| Country | China | 
The Chuanlinggou Formation is a geologic formation in China. It preserves fossils dating back to the Statherian period of the Paleoproterozoic. It is the first formation to preserve definitive macroscopic eukaryotes, at 1.64 billion years old.