Not only most metazoan phyla made their debut at the earliest Cambrian, but also the fossil record like calcareous metaphyte flora and acritarch change dramatically nearly at the same time.
地球外部圈层的演替变,诸如大陆重组、地磁极移、古气候、大洋地球学性质的变大气氧量的变时间上与这一生命爆发事件有耦合关系。