Type
Zone
Age range
98.5–97.5 Ma

International Timescale

Late Cretaceous
Cenomanian

Ammonite Zonation - Boreal

Mantelliceras dixoni
Mantelliceras mantelli
98.598.598.498.398.398.398.298.298.198.098.098.097.997.897.897.897.797.797.697.597.5

Macrostrat

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