Type
Age
Age range
501–496.8 Ma
Furongian
Paibian
Miaolingian
Guzhangian
Drumian
Franconian
Dresbachian
Middle Cambrian
Franconian
Dresbachian
Middle Cambrian
501.0500.8500.6500.4500.2500.0499.8499.6499.4499.2499.0498.8498.6498.4498.2498.0497.8497.6497.4497.2497.0496.8