摘要
距今543Ma前的寒武纪,地球上发生无脊椎动物大爆发,按照生物进化论的观点,在其更早的地层中,应能见到其相应的祖先或其活动痕迹。中国淮南新元代地层中发现的掘迹化石是迄今为止世界上最早的掘迹化石,其时限为距今700Ma。阐述了该掘迹化石的特征,并对其地质意义进行了讨论。
In the Cambrian period , 543 Ma ago, invertebrates burst on the Earth. According to the theory of Evolution, their ancestors should be discovered in the Lower Formation either in the form of their remains or in the trace by their activities. The digging trace fossil discovered in Neoproterozoic era in Huainan China is so far the oldest digging trace on the Earth. It can be traced back to 700 Ma ago. The author studies the characteristics of the fossil and its geological significance.
出处
《淮南职业技术学院学报》
2002年第2期50-51,54,共3页
Journal of Huainan Vocational Technical College
基金
安徽省教育厅自然科学基金项目(2001kj206)