Type
Zone
Age range
431.8–431.2 Ma

International Timescale

Wenlock
Sheinwoodian

Conodont Zonation

Kockelella ortus ortus
Kockelella walliseri
Ozarkodina sagitta rhenana
431.80431.75431.70431.65431.60431.55431.50431.45431.40431.35431.30431.25431.20

Macrostrat

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