Type
Zone
Age range
168.6–168.3 Ma

International Timescale

Middle Jurassic
Bajocian

Ammonite Zonation - Boreal

Zigzagiceras zigzag
Parkinsonia parkinsoni
Garantiana garantiana
168.60168.58168.56168.54168.52168.50168.48168.46168.44168.42168.40168.38168.36168.34168.32168.30

Macrostrat

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