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Intervals
Macrostrat
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M15n
1288
Type
Subchron
Age range
139.94–139.59
Ma
International Timescale
Early Cretaceous
Berriasian
Geomagnetic Polarity Subchron
M14r
M15n
M15r
139.94
139.92
139.90
139.88
139.86
139.84
139.82
139.80
139.78
139.76
139.74
139.72
139.70
139.68
139.66
139.64
139.62
139.60
139.58
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