“Devonian Period”的概念、定义、翻译、参考文献-科学参考

单词	Devonian Period
释义	Devonian Period Encyclopedia 理学古生代释 Devonian Period泥盆纪古生代的第四个纪，在志留纪之后，石炭纪之前。约开始于4.19亿年前，结束于3.59亿年前，持续时间约0.6亿年。泥盆纪时期形成的地层称泥盆系(Devonian System)。
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