Type
Zone
Age range
404.2–403.5 Ma

International Timescale

Early Devonian
Emsian

Conodont Zonation

Eocostapolygnathus nothoperbonus
Eocostapolygnathus gronbergi
Eocostapolygnathus excavatus
404.2404.1404.1404.1404.0403.9403.9403.9403.8403.8403.7403.6403.6403.6403.5

Macrostrat

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