Type
Zone
Age range
133.5–133.4 Ma

International Timescale

Early Cretaceous
Valanginian

Ammonite Zonation - Boreal

Speetoniceras inversum
Endemoceras regale
Endemoceras noricum
133.50133.50133.49133.49133.48133.47133.47133.47133.46133.46133.45133.44133.44133.44133.43133.43133.42133.41133.41133.41133.40

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