Type
Zone
Age range
406–404.2 Ma

International Timescale

Early Devonian
Emsian

Conodont Zonation

Eocostapolygnathus gronbergi
Eocostapolygnathus excavatus
Eocostapolygnathus kitabicus
406.0405.9405.8405.7405.6405.5405.4405.3405.2405.1405.0404.9404.8404.7404.6404.5404.4404.3404.2

Macrostrat

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