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Intervals
Macrostrat
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Ectasian
267
Type
Period
Age range
1400–1200
Ma
International Timescale
also
International Periods
Proterozoic
Mesoproterozoic
Stenian
Ectasian
Calymmian
1,400
1,390
1,380
1,370
1,360
1,350
1,340
1,330
1,320
1,310
1,300
1,290
1,280
1,270
1,260
1,250
1,240
1,230
1,220
1,210
1,200
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