Type
Age
Age range
496.8–492.5 Ma
Furongian
Jiangshanian
Paibian
Trempealeauan
Franconian
Dresbachian
Trempealeauan
Franconian
Dresbachian
496.8496.6496.4496.2496.0495.8495.6495.4495.2495.0494.8494.6494.4494.2494.0493.8493.6493.4493.2493.0492.8492.6492.4