Type
Zone
Age range
426–425.2 Ma

International Timescale

Ludlow
Gorstian

Conodont Zonation

Polygnathoides siluricus
Ancoradella ploeckensis
Kockelella variabilis variabilis
426.0425.9425.9425.9425.8425.8425.7425.6425.6425.6425.5425.4425.4425.4425.3425.3425.2

Macrostrat

Data

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