Type
Subchron
Age range
151.25–151.21 Ma
Late Jurassic
Kimmeridgian
M22n.2n
M22n.2r
M22n.3n
151.250151.248151.246151.244151.242151.240151.238151.236151.234151.232151.230151.228151.226151.224151.222151.220151.218151.216151.214151.212151.210