Type
Age
Age range
504.5–500.5 Ma
Cambrian
Miaolingian
Guzhangian
Drumian
Wuliuan
504.6504.4504.2504.0503.8503.6503.4503.2503.0502.8502.6502.4502.2502.0501.8501.6501.4501.2501.0500.8500.6500.4