Type
Subchron
Age range
166.47–166.41 Ma

International Timescale

Middle Jurassic
Bathonian

Geomagnetic Polarity Subchron

M39n.4r
M39n.5n
M39n.5r
166.470166.465166.460166.455166.450166.445166.440166.435166.430166.425166.420166.415166.410

Macrostrat

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