APP Definition:寒武纪演化动物群hán wǔ jì yǎn huà dòng wù qún显生宙三大演化动物群之一,繁盛于寒武纪,以三叶虫、无铰腕足类、软舌螺等为代表。Cambrian:the Cambrian period or the system of rocks deposited during it前寒武纪的qiánhán wǔ jì deevolutiona......（本文共 331 字） [阅读本文] >>
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Definition:寒武纪演化动物群hán wǔ jì yǎn huà dòng wù qún显生宙三大演化动物群之一,繁盛于寒武纪,以三叶虫、无铰腕足类、软舌螺等为代表。Cambrian:the Cambrian period or the system of rocks deposited during it前寒武纪的qiánhán wǔ jì deevolutiona......（本文共 331 字） [阅读本文] >>
