Type
Zone
Age range
146.7–146.4 Ma

International Timescale

Late Jurassic
Tithonian

Ammonite Zonation - Boreal

Subcraspedites primitivus
Paracraspedites oppressus
Titanites anguiformes
146.70146.68146.66146.64146.62146.60146.58146.56146.54146.52146.50146.48146.46146.44146.42146.40

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