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M5r
1322
Type
Subchron
Age range
131.74–131.43
Ma
International Timescale
Early Cretaceous
Hauterivian
Geomagnetic Polarity Subchron
M5n
M5r
M6n
131.74
131.72
131.70
131.68
131.66
131.64
131.62
131.60
131.58
131.56
131.54
131.52
131.50
131.48
131.46
131.44
131.42
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