Type
Zone
Age range
304.5–304 Ma

International Timescale

Pennsylvanian
Kasimovian

Conodont Zonation

Streptognathodus firmus
Idiognathodus toretzianus
Streptognathodus cancellosus
304.52304.50304.48304.46304.44304.42304.40304.38304.36304.34304.32304.30304.28304.26304.24304.22304.20304.18304.16304.14304.12304.10304.08304.06304.04304.02304.00303.98

Macrostrat

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