Type
Zone
Age range
188.5–187.5 Ma

International Timescale

Early Jurassic
Pliensbachian

Ammonite Zonation - Boreal

Amaltheus margaritatus
Prodactylioceras davoei
Tragophylloceras ibex
188.5188.4188.4188.3188.3188.3188.2188.2188.1188.1188.0187.9187.9187.8187.8187.8187.7187.7187.6187.6187.5

Macrostrat

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