Cryogenian (1 gen 720000000 anni a. C. – 1 gen 635000000 anni a. C.)
Descrizione:
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.Aggiunto al nastro di tempo:
Data:
1 gen 720000000 anni a. C.
1 gen 635000000 anni a. C.
~ 5883516 years