Type
Age
Age range
279.9–276.05 Ma
Cisuralian
Kungurian
Irenian
Flippovian
Saraninian
280.0279.8279.6279.4279.2279.0278.8278.6278.4278.2278.0277.8277.6277.4277.2277.0276.8276.6276.4276.2276.0