A new global chronostratigraphic subdivision of Cambrian System into 4 series and 10 stages has been developed to replace the tripartite traditional framework of the system, which has been used for more that 170 years.

• 摘要重新划分全球寒武系年代地层为4统和10阶，取代了国际地学界沿用了近170年的上、中、下3统的传统划分框架。