Type
Age
Age range
303.68–302 Ma
Pennsylvanian
Gzhelian
Kasimovian
Pavlovoposadian
Rusavkinian
Dorogomilovian
303.7303.6303.5303.4303.3303.2303.1303.0302.9302.8302.7302.6302.5302.4302.3302.2302.1302.0