Type
Subchron
Age range
161.61–161.39 Ma
Late Jurassic
Oxfordian
Middle Jurassic
Callovian
M33n.3r
M33n.4n
M33r
161.61161.60161.59161.58161.57161.56161.55161.54161.53161.52161.51161.50161.49161.48161.47161.46161.45161.44161.43161.42161.41161.40161.39