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Intervals
Macrostrat
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NP24
300
Type
Zone
Age range
27.13–26.81
Ma
International Timescale
Oligocene
Chattian
Calcareous Nannoplankton Zones
NP25
NP24
NP23
27.14
27.12
27.10
27.08
27.06
27.04
27.02
27.00
26.98
26.96
26.94
26.92
26.90
26.88
26.86
26.84
26.82
26.80
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