Type
Zone
Age range
346.7–344 Ma

International Timescale

Mississippian
Visean
Tournaisian

Conodont Zonation

Gnathodus texanus
Gnathodus pseudosemiglaber-Scallioganthus anchoralis
Gnathodus semiglaber-Polygnathus communis
346.8346.6346.4346.2346.0345.8345.6345.4345.2345.0344.8344.6344.4344.2344.0

Macrostrat

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