Type
Epoch
Age range
298.9–274.4 Ma
Paleozoic
Permian
Guadalupian
Roadian
Cisuralian
Kungurian
Artinskian
Sakmarian
Asselian
Carboniferous
Pennsylvanian
Gzhelian
Biarmian
Cisuralian
Late Pennsylvanian
300299298297296295294293292291290289288287286285284283282281280279278277276275274