Type
Age
Age range
312–306 Ma
Pennsylvanian
Kasimovian
Moscovian
Missourian
Desmoinesian
Atokan
Missourian
Desmoinesian
Atokan
Missourian
Desmoinesian
Atokan
312.0311.5311.0310.5310.0309.5309.0308.5308.0307.5307.0306.5306.0