Type
Subchron
Age range
138.91–138.66 Ma

International Timescale

Early Cretaceous
Berriasian

Geomagnetic Polarity Subchron

M13r
M14n
M14r
138.92138.90138.88138.86138.84138.82138.80138.78138.76138.74138.72138.70138.68138.66

Macrostrat

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