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Intervals
Macrostrat
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C30
1097
Type
Chron
Age range
68.369–66.398
Ma
International Timescale
Late Cretaceous
Maastrichtian
Geomagnetic Polarity Chron
C29
C30
C31
68.4
68.3
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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