Russian Precambrian Eras
3200 - 600 Ma
Geologic Time
Proterozoic
Neoproterozoic
Ediacaran
Cryogenian
Tonian
Mesoproterozoic
Stenian
Ectasian
Calymmian
Paleoproterozoic
Statherian
Orosirian
Rhyacian
Siderian
Archean
Neoarchean
Mesoarchean
Paleoarchean
Era
Late Riphean
Middle Riphean
Early Riphean
Late Karelian
Early Karelian
Late Lopian
Middle Lopian
Early Lopian
