Type
Zone
Age range
417.2–415.2 Ma

International Timescale

Early Devonian
Lochkovian

Conodont Zonation

Lanea omoalpha
Caudicriodus postwoschmidti
Caudicriodus hesperius
417.2417.1417.0416.9416.8416.7416.6416.5416.4416.3416.2416.1416.0415.9415.8415.7415.6415.5415.4415.3415.2

Macrostrat

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