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迄今得到世界公认的、证据确凿的有翅亚纲昆虫化石发现于晚石炭世纳缪尔期(Namurianstage)。在这个时期爆发出大量且多样性的昆虫群,形成地史中第1个繁盛期。在这种地质背景下,中国祁连山地区也爆发出迄今第1个最古老的昆虫群,命名为祁连山昆虫群(QilianshanEntomofauna)(属祁连山动物群,也是祁连山生物群中的一个门类)。中国祁连山昆虫群发现于宁夏中卫县晚石炭世纳缪尔期中—薄层黑色页岩、炭质页岩之中。中卫县地处宁夏中部,(中)卫(中)宁平原的西侧。化石产于中卫县城西南20km处的下河沿村,北邻黄河,南依香山,地理坐标为东经105°05’、北纬37°25’,行政区划隶属于中卫县常乐镇。中国祁连山纳缪尔期昆虫的发现与研究,使笔者有机会对这一时期昆虫群的面貌、性质和演化关系,以及产地和层位的分布有了较全面的认识。本区昆虫既有全球纳缪尔期昆虫面貌的一般色彩,又有本区昆虫独特之处,不但有别于欧美的纳缪尔期昆虫,也与中国晚石炭世本溪组和二叠纪山西组、石盒子组昆虫面貌迥然不同。经过详细研究,确立了中国祁连山纳缪尔期的昆虫群———祁连山昆虫群,以宁夏中国纳缪尔翅蛉—石炭祁连山翅蛉—下河沿拟原翅蛉(Sinonamuropterisningxiaensis-Qilian-shanopteriscarbonica-Protoplecopsisxiaheyanensis)为
To date, the world-acknowledged and proven Evochanidae fossil has been found in the Namurian Stages of the Late Carboniferous. A large and diverse insect population erupted during this period, forming the first thriving period in geography. Under this geological background, the Qilianshan Entomofauna (Qilian fauna, also a Qilian Mountains biota) is also the first one to date in the Qilian Mountains in China. The insect community in the Qilian Mountains of China was found in the middle-thin layer of black shale and carbonaceous shale in the Late Carboniferous Namurian Period in Zhongwei County, Ningxia. Zhongwei County is located in central Ningxia, (middle) Wei (middle) Ning Plains west. The fossil is produced in the lower riverside village 20km southwest of Zhongwei County, with the Yellow River to the north and Xiangshan in the south. The geographical coordinates are 105 ° 05’E and 37 ° 25’N, and the administrative division belongs to Changle Town, Zhongwei County. The discovery and study of the Numerous insects in the Qilian Mountains in China have given the author the opportunity to have a comprehensive understanding of the appearance, nature and evolutionary relationships of insect populations and the distribution of origin and horizon during this period. The insects in this area not only have the general appearance of the global Namurian insects, but also have unique insect features in this area. They are not only different from the Namuelson insects in Europe and the United States, but also with Benxi Formation and Permian Shanxi Groups, stone box sub-group of insects look very different. After detailed study, the insect community of Naluille Period in Qilian Mountains in China was established, which is named as Qilian Mountain Insect Group. Sinonamuropteris ningxiaensis-Qilian-shanopteriscarbonica-Protoplecopsisxiaheyanensis )for