theDevonianperiod

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Near the end of the Devonian period, 370m years ago , many species of fish and 70% of marine invertebrates perished. The reason is unclear .

7亿年前，泥盆纪（theDevonianperiod ）即将结束，许多种鱼类和 70%的海洋无脊椎动物消失，原因尚不清楚。

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