Type
Zone
Age range
298.9–298 Ma

International Timescale

Cisuralian
Asselian
Pennsylvanian
Gzhelian

Conodont Zonation

Streptognathodus sigmoidalis-Streptognathodus cristellaris
Streptognathodus isolatus
Streptognathodus wabaunsensis
298.9298.9298.8298.8298.7298.6298.6298.6298.5298.4298.4298.4298.3298.3298.2298.1298.1298.1298.0

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