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生态系的演变是地球各圈层系统耦合关系变化的直接标志。地史转折期的生态系具有复杂的生物内涵，在绝灭—残存—复苏过程中，各生物类别的演替遵循着一定的生存型式。大绝灭后生态系复苏的原动力是绝灭后迁入避难所的复活类型和大绝灭末期高压环境中产生的祖先类型的新生和辐射发展。全面了解绝灭后生态系的组成和结构，对于正确认识地史转折期，即圈层耦合结点处的地质作用型式和过程具有重要作用。
The evolution of ecosystems is a direct indicator of changes in the coupling of the Earth’s spheres. Ecosystems in the transitional history have complex biological connotations. During the process of extinction-remnant-resuscitation, the succession of each taxon follows a certain type of survival. The driving force behind the revival of the ecosystem after the Great Extinction was the newborn and radiation development of the ancestral types produced in the high-pressure environment at the end of the Great Extinction after the extinction immigrants moved to the resurrection type. A comprehensive understanding of the composition and structure of post-extinct ecosystems plays an important role in correctly understanding the geologic transitional period at the geosphere coupling node.