Type
Subchron
Age range
68.369–68.196 Ma

International Timescale

Late Cretaceous
Maastrichtian

Geomagnetic Polarity Subchron

C30n
C30r
C31n
68.3768.3668.3568.3468.3368.3268.3168.3068.2968.2868.2768.2668.2568.2468.2368.2268.2168.2068.19

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