不同地史时期造礁生物及其附礁生物的组合不同，形成的礁体具有不同的类型、规模和特征。
The combinatorial types of reef-forming organisms and reef-inserted organisms were fairly different during different geological periods, and the reefs varied respectively in type, size and feature.
近几年，随着研究的不断深入，笔者等陆续发现了一些新型的造礁生物，其中一种重要的造礁生物是一种类似藻类的生物。
In recent years, with the development of reef study, some new-style reef-building organisms were found, one of which is an important reef-building organism which is similar to alga.
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