Type
Zone
Age range
156–154.7 Ma

International Timescale

Late Jurassic
Kimmeridgian
Oxfordian

Ammonite Zonation - Boreal

Aulacostephanus mutabilis
Rasenia cymodoce
Pictonia baylei
156.0155.9155.8155.7155.6155.5155.4155.3155.2155.1155.0154.9154.8154.7

Macrostrat

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