Type
Age
Age range
477.1–471.3 Ma

International Timescale

also International Ages, Russian Stages
Ordovician
Middle Ordovician
Dapingian
Early Ordovician
Floian
Tremadocian
477.0476.5476.0475.5475.0474.5474.0473.5473.0472.5472.0471.5

Macrostrat

Data

Platform

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