Type
Zone
Age range
169.8–169.5 Ma

International Timescale

Middle Jurassic
Bajocian

Ammonite Zonation - Boreal

Strenoceras niortense
Stephanoceras humphriesianum
Witchellia laeviuscula
169.80169.78169.76169.74169.72169.70169.68169.66169.64169.62169.60169.58169.56169.54169.52169.50

Macrostrat

Data

Platform

Links

Actions

View on map View in Sift