西伯利亚地台的新元古代到早寒武世间的钙藻化石特别丰富 ,为研究钙藻化石的发育历史提供了模式。在几次演化事件背景下记录了演化的两次转折 ,其中一个是藻类的普遍钙化 ,还有一个是 Botom ian晚期到 Toyonian早期之间在西伯利亚地台缺失钙藻化石记录 ,而在其它地区包括西伯利亚地台的边缘 ( Altay- Sayan地区 ) ,钙藻的丰度却达到了最大 The Neoproterozoic to early Cambrian calcareous fossils on the Siberian Platform are particularly rich in calcareous fossils, providing a model for the study of the developmental history of calcareous fossils. Two transitions were recorded in the context of several evolutionary events, one of which was widespread calcification of algae, and the other was a loss of calcaliferous fossil record on the Siberian platform between the late Botomian and early Toyonian stages, while in others On the edge of the Siberia platform (Altay-Sayan area), the abundance of calcium algae has reached its maximum