Lexicon
Intervals
Macrostrat
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NJ1
365
Type
Zone
Age range
201.4–199.66
Ma
International Timescale
Early Jurassic
Hettangian
Late Triassic
Rhaetian
Calcareous Nannoplankton Zones
NJ2
NJ1
201.4
201.3
201.2
201.1
201.0
200.9
200.8
200.7
200.6
200.5
200.4
200.3
200.2
200.1
200.0
199.9
199.8
199.7
199.6
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