Lexicon
Intervals
Macrostrat
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M42
1045
Type
Chron
Age range
169.24–168.15
Ma
International Timescale
Middle Jurassic
Bathonian
Bajocian
Geomagnetic Polarity Chron
M41
M42
M43
169.3
169.2
169.2
169.1
169.1
169.0
168.9
168.9
168.8
168.8
168.8
168.7
168.7
168.6
168.6
168.5
168.4
168.4
168.3
168.3
168.3
168.2
168.2
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