Type
Zone
Age range
320.8–320 Ma

International Timescale

Pennsylvanian
Bashkirian

Conodont Zonation

Idiognathodus sinuosus
Neognathodus askynensis
Idiognathoides sinuatus
320.8320.8320.7320.6320.6320.6320.5320.4320.4320.4320.3320.3320.2320.1320.1320.1320.0

Macrostrat

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