Type
Subchron
Age range
161.14–161.06 Ma
Late Jurassic
Oxfordian
M33n.1r
M33n.2n
M33n.2r
161.14161.13161.13161.13161.12161.12161.11161.10161.10161.09161.09161.09161.08161.07161.07161.06161.06