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Intervals
Macrostrat
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M39n.1r
1183
Type
Subchron
Age range
165.42–165.13
Ma
International Timescale
Middle Jurassic
Callovian
Bathonian
Geomagnetic Polarity Subchron
M39n.1n
M39n.1r
M39n.2n
165.42
165.40
165.38
165.36
165.34
165.32
165.30
165.28
165.26
165.24
165.22
165.20
165.18
165.16
165.14
165.12
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