Lexicon
Intervals
Macrostrat
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M18
1073
Type
Chron
Age range
145.01–144
Ma
International Timescale
Late Jurassic
Tithonian
Geomagnetic Polarity Chron
M17
M18
M19
145.1
145.0
144.9
144.9
144.8
144.8
144.8
144.7
144.7
144.6
144.6
144.5
144.4
144.4
144.3
144.3
144.3
144.2
144.2
144.1
144.1
144.0
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