Type
Age
Age range
458.2–452.8 Ma

International Timescale

also International Ages, Russian Stages
Ordovician
Late Ordovician
Katian
Sandbian
Middle Ordovician
Darriwilian
458.4458.2458.0457.8457.6457.4457.2457.0456.8456.6456.4456.2456.0455.8455.6455.4455.2455.0454.8454.6454.4454.2454.0453.8453.6453.4453.2453.0452.8452.6

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