Type
Subchron
Age range
163.29–163.16 Ma

International Timescale

Middle Jurassic
Callovian

Geomagnetic Polarity Subchron

M36n.2n
M36r
M37n.1n
163.29163.28163.27163.26163.25163.24163.23163.22163.21163.20163.19163.18163.17163.16

Macrostrat

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