Type
Age
Age range
497–493 Ma
Furongian
Jiangshanian
Paibian
Miaolingian
Guzhangian
Aksaian
Sakian
Ayusokanian
Aksaian
Sakian
Ayusokanian
497.0496.8496.6496.4496.2496.0495.8495.6495.4495.2495.0494.8494.6494.4494.2494.0493.8493.6493.4493.2493.0