Type
Subchron
Age range
146.9–146.54 Ma

International Timescale

Late Jurassic
Tithonian

Geomagnetic Polarity Subchron

M19r
M20n.1n
M20n.1r
146.90146.88146.86146.84146.82146.80146.78146.76146.74146.72146.70146.68146.66146.64146.62146.60146.58146.56146.54

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