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中国黄土区第四纪脊椎动物
THE FOSSIL VERTEBRATES IN LOESS DEPOSITS OF CHINA
【摘要】 <正> 中国黄土研究中,脊椎动物化石一直具有重要地位。二十至三十年代,杨钟健、德日进、裴文中等对黄土中脊椎动物化石做了比较深入的研究,为黄土地层划分奠定了基础。1962年,刘东生、张宗祜根据山西(?)县午城剖面的脊椎动物化石及地层的不整合关系,划分了午城黄土、离石黄土和马兰黄土。而后,刘东生等在"黄河中游黄土"、"中国的黄土堆积"和"黄土的物质成分与结构"等著作中,对黄土区的脊椎动物化石做了比较系统的总结。相继,又陆续发现了一些化石地点,如陕西蓝田、铜川灰堆坡等。陕西、山西等省地质局在区域地质调查过程中,也在黄土中发现了一些化石地点。1980-1981年,著者等对陕西洛川黑木沟黄土剖面进行研究时,逐层采集脊椎动物化石,发现了一些有意义的标本。到目前,黄土地层中已发现的化石地点达132个。说明黄土中脊椎动物化石相当丰富。本文将这些脊椎动物化石资料加以整理,对黄土地层中脊椎动物的组合、分带、演化等问题,提出一些意见,并试图以黄土区脊椎动物群的特征讨论第四纪以来
【Abstract】 More than one hundred and thirty vertebrate fossil localities in losess layers of different geological ages were discovered in North China. The fossil vertebrates from them belong to ninety five species of fifty six general. The components of the fossil vertebrates indicate that they represent an arid grassland environment. The vertebrates fossil assemblages in various loess layers may be subdivided into five fossil zones. The coverage area of loess of different ages as well as the range of distribution of the representative fossil species in different loess layers show that the area of distribution of loess deposits gradually expanded from the Lower Pleistocene to the Upper Pleistocene. This fact suggests that the climate might have become gradually drier but with many rhythmic fluctuations since the Early Pleistocene to recent times.
- 【文献出处】 第四纪研究 ,Quaternary Sciences , 编辑部邮箱 ,1985年01期
- 【被引频次】7
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