Type
Zone
Age range
129–128.8 Ma

International Timescale

Early Cretaceous
Hauterivian

Ammonite Zonation - Boreal

Paracrioceras elegans
Haplocrioceras fissicostatum
Paracrioceras rarocinctum
129.00128.99128.98128.97128.96128.95128.94128.93128.92128.91128.90128.89128.88128.87128.86128.85128.84128.83128.82128.81128.80

Macrostrat

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