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Intervals
Macrostrat
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NN3
296
Type
Zone
Age range
19.18–17.94
Ma
International Timescale
Miocene
Burdigalian
Calcareous Nannoplankton Zones
NN4
NN3
NN2
19.2
19.1
19.0
18.9
18.8
18.7
18.6
18.5
18.4
18.3
18.2
18.1
18.0
17.9
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