Linked Data Service of GSJ
Geological age
[ Proterozoic ] Upper level
Proterozoic
Neoproterozoic
Ediacaran
635
Cryogenian
720
Tonian
1000
Mesoproterozoic
Stenian
1200
Ectasian
1400
Calymmian
1600
Paleoproterozoic
Statherian
1800
Orosirian
2050
Rhyacian
2300
Siderian
2500