Type
Era
Age range
2500–1600 Ma
Proterozoic
Mesoproterozoic
Calymmian
Paleoproterozoic
Statherian
Orosirian
Rhyacian
Siderian
Archean
Neoarchean
2,5002,4502,4002,3502,3002,2502,2002,1502,1002,0502,0001,9501,9001,8501,8001,7501,7001,6501,600