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Intervals
Macrostrat
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M19r
1277
Type
Subchron
Age range
146.54–146.28
Ma
International Timescale
Late Jurassic
Tithonian
Geomagnetic Polarity Subchron
M19n.2n
M19r
M20n.1n
146.54
146.52
146.50
146.48
146.46
146.44
146.42
146.40
146.38
146.36
146.34
146.32
146.30
146.28
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