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Intervals
Macrostrat
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NN4
295
Type
Zone
Age range
17.94–14.86
Ma
International Timescale
Miocene
Langhian
Burdigalian
Calcareous Nannoplankton Zones
NN5
NN4
NN3
18.0
17.8
17.6
17.4
17.2
17.0
16.8
16.6
16.4
16.2
16.0
15.8
15.6
15.4
15.2
15.0
14.8
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