Type
Subchron
Age range
169.86–169.75 Ma
Middle Jurassic
Bajocian
M43n.2r
M43n.3n
M43r
169.86169.85169.85169.84169.84169.84169.83169.82169.82169.81169.81169.81169.80169.79169.79169.78169.78169.78169.77169.76169.76169.75169.75