Type
Age
Age range
298.9–293.52 Ma
Permian
Cisuralian
Sakmarian
Asselian
Carboniferous
Pennsylvanian
Gzhelian
299.0298.8298.6298.4298.2298.0297.8297.6297.4297.2297.0296.8296.6296.4296.2296.0295.8295.6295.4295.2295.0294.8294.6294.4294.2294.0293.8293.6293.4