Cryogenian (jan 1, 720000000 BC – jan 1, 635000000 BC)
Description:
The Cryogenian is a geologic period that lasted from 720 to 635 million years ago. It is the second of the three periods of the Neoproterozoic era, preceded by the Tonian and followed by the Ediacaran.Added to timeline:
Date:
jan 1, 720000000 BC
jan 1, 635000000 BC
~ 5883516 years