| 贵州福泉牛蹄塘组蠕虫状化石组合的发现 |
| |
| 引用本文： | 庞艳春,林丽,徐可,薛园,郑世雯,隗延章.贵州福泉牛蹄塘组蠕虫状化石组合的发现[J].地球科学,2016,41(4):612-618. |
| |
| 作者姓名： | 庞艳春 林丽 徐可 薛园 郑世雯 隗延章 |
| |
| 作者单位： | 1.成都理工大学沉积地质研究院，四川成都 610059 |
| |
| 基金项目： | 成都理工大学中青年教师骨干培养计划项目JXGG201214四川省教育厅青年基金项目2011-532国家自然科学基金项目41173058 |
| |
| 摘 要： | 贵州省福泉桅杆坪地区寒武系底部牛蹄塘组黑色页岩中以炭质印模的形式保存有大量宏观后生动物化石.化石微细特征保存较差，多属于疑难化石.该化石组合以化石个体较大的蠕虫状化石和疑似杆壁虫类化石为优势分子，还常见管状类化石、遗迹化石，以及少量的软舌螺、海绵骨针等化石碎片.该化石组合紧位于镍钼多金属层之上，与遵义等地区的松林生物群(牛蹄塘组下生物群)的层位相当，化石组成基本一致，但优势生物存在明显差异.福泉地区牛蹄塘组蠕虫状化石组合的发现，丰富了寒武系牛蹄塘组的生物群面貌，为研究早期后生动物演化提供了新资料和新信息.对该化石组合的进一步研究，也必将为这种特殊生物群的古环境恢复和埋藏学研究提供有利的古生物学证据.
|
| 关 键 词： | 寒武系底部 牛蹄塘组 镍钼多金属层 蠕虫状化石组合 地层学 古生物学 |
| 收稿时间： | 2015-05-29 |
Worm-Like Fossil Assemblage from Niutitang Formation of Fuquan County,Guizhou Province |
| |
| Abstract: | A large number of macrofossils were preserved in-situ as carbonaceous compressions in black shales of the Lower Cambrian Niutitang Formation in Weiganping area of Fuquan, Guizhou Province. The microstructure characters of these fossils are not clear. It is difficult to catalogue most fossils, which belong to some problematic fossils. The fossil assemblages mainly include worm-like fossils, rhabdopleurid-like fossils, tubular fossils and trace fossils, and a small amount of other fossils such as hyolithys, sponge spicules etc. The worm-like fossil assemblages are dominated by worm-like fossils and rhabdopleurid-like fossils, whose size is large. The fossil-bearing bed is located proximately on the nickel-molybdenum multi-metals layer. The worm-like fossil assemblage from the Niutitang Formation in Fuquan is equivalent to that of Zunyi biotas (lower biota of the Niutitang Formation), but different in predominant groups. The discovery of the worm-like fossil assemblage in Fuquan enriches the Cambrian Niutitang biota, and provides new information and materials for the study of evolution of early metazoans. Further studies of the worm-like fossil assemblage will surely provide more favorable evidences of paleontology for the ancient environment recovery and taphonomy research. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球科学》浏览原始摘要信息 |
| 点击此处可从《地球科学》下载免费的PDF全文 |
|
