中卫、中宁地区位于宁夏西部。大地构造位置属北祁连走廊过渡带的东端。该区石炭系发育较好(图1),化石丰富。过去,因发现纳缪尔期菊石引起了大家关注,但菊石产出的详细层位不明。近年来,我们赴实地测制了剖面.广采化石,对该段地层有了一些新认识。文中菊石由武汉地质学院杨逢清鉴定,植物化 Zhongwei, Zhongning region is located in western Ningxia. The tectonic position of the earth belongs to the eastern end of the transition zone of the North Qilian Corridor. Carboniferous development in this area is better (Figure 1), rich in fossils. In the past, the discovery of the nano-auriculite aroused people’s attention, but the detailed level of the production of amethyst was unknown. In recent years, we went to the field to test the profile, and extensive fossil mining has given some new understanding of the strata. The text by the Institute of Wuhan Institute of geology amilliqing identification, phytochemical