acritarch

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.

地球外部圈层演替化，诸如陆重组、地磁极移、古候、洋地球化学性质化以及化等在时间上与这一生命爆发事件有耦合关系。