Type
Subchron
Age range
166.23–166.07 Ma
Middle Jurassic
Bathonian
M39n.3n
M39n.3r
M39n.4n
166.23166.22166.21166.20166.19166.18166.17166.16166.15166.14166.13166.12166.11166.10166.09166.08166.07