Type
Zone
Age range
498.5–497 Ma

International Timescale

Furongian
Paibian
Miaolingian
Guzhangian

Trilobite Zonation - Laurentia

Aphelaspis
Crepicephalus
Cedaria
498.5498.4498.3498.2498.1498.0497.9497.8497.7497.6497.5497.4497.3497.2497.1497.0

Macrostrat

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