Type
Zone
Age range
154.7–153.7 Ma

International Timescale

Late Jurassic
Kimmeridgian

Ammonite Zonation - Boreal

Aulacostephanus eudoxus
Aulacostephanus mutabilis
Rasenia cymodoce
154.7154.7154.6154.6154.5154.4154.4154.3154.3154.3154.2154.2154.1154.1154.0153.9153.9153.8153.8153.8153.7

Macrostrat

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