Type
Zone
Age range
494.5–493.5 Ma

International Timescale

Furongian
Jiangshanian
Paibian

Trilobite Zonation - Laurentia

Taenicephalus
Elvinia
Dunderbergia
494.5494.4494.4494.4494.3494.3494.2494.1494.1494.1494.0493.9493.9493.9493.8493.8493.7493.6493.6493.6493.5

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