Type
Age
Age range
322.1–321.3 Ma
Pennsylvanian
Bashkirian
Severokeltmian
Krasnopolyanian
Voznesenian
322.1322.1322.0321.9321.9321.9321.8321.8321.7321.6321.6321.6321.5321.4321.4321.4321.3