Type
Subchron
Age range
151.12–149.8 Ma
Late Jurassic
Kimmeridgian
M21r
M22n.1n
M22n.1r
M22n.2n
151.1151.0150.9150.8150.7150.6150.5150.4150.3150.2150.1150.0149.9149.8