Chuanlinggou Formation

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.

[2][3] After Miao et al, 2024,[3] Liu et al, 2023[2] and Zhongying 1986[4]