Type
Subchron
Age range
146.28–145.19 Ma
Late Jurassic
Tithonian
M19n.1r
M19n.2n
M19r
146.3146.3146.2146.2146.1146.1146.0145.9145.9145.8145.8145.8145.7145.7145.6145.6145.5145.4145.4145.3145.3145.3145.2145.2