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C30n
1341
Type
Subchron
Age range
68.196–66.398
Ma
International Timescale
Late Cretaceous
Maastrichtian
Geomagnetic Polarity Subchron
C29r
C30n
C30r
68.2
68.1
68.0
67.9
67.8
67.7
67.6
67.5
67.4
67.3
67.2
67.1
67.0
66.9
66.8
66.7
66.6
66.5
66.4
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