Lexicon
Intervals
Macrostrat
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NN1
298
Type
Zone
Age range
23.13–22.68
Ma
International Timescale
Miocene
Aquitanian
Oligocene
Chattian
Calcareous Nannoplankton Zones
NN2
NN1
NP25
23.14
23.12
23.10
23.08
23.06
23.04
23.02
23.00
22.98
22.96
22.94
22.92
22.90
22.88
22.86
22.84
22.82
22.80
22.78
22.76
22.74
22.72
22.70
22.68
22.66
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