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Intervals
Macrostrat
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M33
1054
Type
Chron
Age range
161.81–160.73
Ma
International Timescale
Late Jurassic
Oxfordian
Middle Jurassic
Callovian
Geomagnetic Polarity Chron
M32
M33
M34
161.8
161.8
161.8
161.7
161.7
161.6
161.6
161.5
161.4
161.4
161.3
161.3
161.3
161.2
161.2
161.1
161.1
161.0
160.9
160.9
160.8
160.8
160.8
160.7
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