Type
Eon
Age range
3200–2500 Ma
Paleoproterozoic
Siderian
Neoarchean
Mesoarchean
Paleoarchean
Karelian
Lopian
Saamian
3,2003,1503,1003,0503,0002,9502,9002,8502,8002,7502,7002,6502,6002,5502,500