“precambrian flora”的概念、定义、翻译、参考文献-科学参考

单词	precambrian flora
释义	precambrian flora Encyclopedia 理学古植物学释 precambrian flora前寒武纪植物前寒武纪（5.4亿年以前）和早古生代是藻类植物的时代。35亿年前或略早于35亿年前到大约15亿年的前寒武纪地球上只有细菌和蓝藻。它们都是原核生物。从15亿年前到寒武纪（5.4亿年前）地球上除细菌和蓝藻外，已有绿藻、红藻和褐藻。
随便看	Gansu Taitong-Kongtong Shan National Nature Reserve Gansu Taizi Shan National Nature Reserve Gansu Tao He National Nature Reserve Gansu Tianshui Opera Prints Gansu TV Station Gansu University of Chinese Medicine Gansu wapiti Gansu water conservancy Gansu Xiaolong Shan National Nature Reserve Gansu Xinglong Shan National Nature Reserve Gansu Yanchiwan National Nature Reserve Gansu Zhangye Heihe Wetland National Nature Reserve Ganswindt crater Gan Tang gan theorem gantry crane gantry lightning protection device gantry milling machine gantry scaffold Gantt chart Gantuoyan Gan Weilin Ganxian Qu Gan Xifen Gan Xuewei

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