Type
Epoch
Age range
201.4–174.7 Ma

International Timescale

also International Epochs, Russian Epochs
Mesozoic
Jurassic
Middle Jurassic
Aalenian
Early Jurassic
Toarcian
Pliensbachian
Sinemurian
Hettangian
Triassic
Late Triassic
Rhaetian
202200198196194192190188186184182180178176174

Macrostrat

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