三叶虫是二叠纪末生物集群灭绝中消失的生物门类之一,但是关于该门类生物化石在中国消失的确切层位未见报道。贵州安顺新民剖面大隆组顶部的三叶虫化石Pseudophillipsia sp.产于火山成因的黏土岩之炭质泥岩夹层中,相邻的泥灰岩结核中产牙形石化石Clarkina meishanensis。该黏土岩及炭质泥岩夹层可以与浙江长兴煤山D剖面的第25层对比,这说明三叶虫延续到了主灭绝事件层位,对研究二叠纪末生物集群灭绝的原因具有一定的意义。 Trilobites are one of the biota that disappeared during the Permian end-stage extinction. However, the exact horizon about the disappearance of this family of biofuels in China has not been reported. Pseudophillipsia sp. At the top of the Dalong Formation in the Xinmin section of Anshun, Anshun, Guizhou, is produced in a carbonaceous mudstone interbedded with volcanic-derived clay rocks, with conodont-type fossil Clarkina meishanensis in the adjacent marl nodules. This claystone and carbonaceous mudstone interlayer can be compared with the 25th layer of the D section of Meishan, Changxing, Zhejiang Province, indicating that trilobite continues to the main extinction event, which is of great significance to the study of the reasons for the extinction of the Permian end groups .