Type
Zone
Age range
146.4–146 Ma

International Timescale

Late Jurassic
Tithonian

Ammonite Zonation - Boreal

Subcraspedites preplicomphalus
Subcraspedites primitivus
Paracraspedites oppressus
146.40146.38146.36146.34146.32146.30146.28146.26146.24146.22146.20146.18146.16146.14146.12146.10146.08146.06146.04146.02146.00

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