Type
Zone
Age range
195.4–193.8 Ma

International Timescale

Early Jurassic
Sinemurian

Ammonite Zonation - Boreal

Oxynoticeras oxynotum
Asteroceras obtusum
Caenisites turneri
195.4195.3195.2195.1195.0194.9194.8194.7194.6194.5194.4194.3194.2194.1194.0193.9193.8

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