Type
Subchron
Age range
149.35–148.44 Ma
Late Jurassic
Tithonian
Kimmeridgian
M20r
M21n
M21r
149.3149.3149.3149.2149.2149.1149.1149.0148.9148.9148.8148.8148.8148.7148.7148.6148.6148.5148.4148.4