首页> 中文期刊> 《地质学报:英文版》 >Early Evolution of Marine Planktonic and Nektonic Ecosystems:Questions and Chinese Approaches

Early Evolution of Marine Planktonic and Nektonic Ecosystems:Questions and Chinese Approaches

         

摘要

The originations of marine planktons and nektons are significantly delayed than that of benthos,as evidenced by the fossil record.The Cambrian Explosion produced a variety of high-level marine organisms,and many remarkablebody-plans.However,a majority of these organisms are benthic or level-bottomed,and are rather dependent on the substrates of sea floors.

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