Lexicon
Intervals
Macrostrat
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M1
1091
Type
Chron
Age range
128.66–126.3
Ma
International Timescale
Early Cretaceous
Hauterivian
Geomagnetic Polarity Chron
M0
M1
M3
128.7
128.6
128.5
128.4
128.3
128.2
128.1
128.0
127.9
127.8
127.7
127.6
127.5
127.4
127.3
127.2
127.1
127.0
126.9
126.8
126.7
126.6
126.5
126.4
126.3
126.2
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