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Intervals
Macrostrat
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NP21
303
Type
Zone
Age range
34.44–32.92
Ma
International Timescale
Oligocene
Rupelian
Eocene
Priabonian
Calcareous Nannoplankton Zones
NP22
NP21
NP19-20
34.5
34.4
34.3
34.2
34.1
34.0
33.9
33.8
33.7
33.6
33.5
33.4
33.3
33.2
33.1
33.0
32.9
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