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by
786692938.std 786692938.std
8 years ago
306
化石
化石记录展示了地球生命的演化历程,最早的化石属于蓝菌。化石研究通常分为几个主要阶段:古生代、中生代和新生代。古生代又细分为寒武纪、奥陶纪、志留纪、泥盆纪、石炭纪和二叠纪。在古生代前期,化石记录仅显示了蓝菌的存在,尚未发现其他显著的化石或这些生物尚未形成化石。中生代和新生代也分别有其特定的化石记录和分支主题。通过研究这些不同阶段的化石,科学家能够更好地理解地球生命的演化和各个时期的生物多样性。
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化石
主節點
分為古生代前期,古生 代,中生代,新生代
新生代
中生代
古生代
有寒武紀,奧陶紀,志留記 ,泥盆紀,石炭紀,二疊紀
古生代前期
只有發現藍菌,未發現其他 化石或無法形成化石
分支主題
最早的化石為藍菌