Lexicon
Intervals
Macrostrat
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C9
1117
Type
Chron
Age range
27.859–26.42
Ma
International Timescale
Oligocene
Chattian
Rupelian
Geomagnetic Polarity Chron
C8
C9
C10
27.9
27.8
27.7
27.6
27.5
27.4
27.3
27.2
27.1
27.0
26.9
26.8
26.7
26.6
26.5
26.4
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