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M17n
1284
Type
Subchron
Age range
142.57–142.22
Ma
International Timescale
Early Cretaceous
Berriasian
Geomagnetic Polarity Subchron
M16r
M17n
M17r
142.58
142.56
142.54
142.52
142.50
142.48
142.46
142.44
142.42
142.40
142.38
142.36
142.34
142.32
142.30
142.28
142.26
142.24
142.22
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