广西南宁南部柳桥地区的长兴组上部硅质岩中保存着精美的长兴期晚期放射虫动物群 ,共有 2 4属 3 9种 ,其中 3个新种 ,其中以 L atentifistularia最为常见 ,其次是 Albaillellidae和 Entactiniidae,属于二叠纪晚期的 N eoal-baillella optima组合。伴生生物有有孔虫、海绵骨针、腕足动物等。多数属种在接近二叠纪 -三叠纪界线附近消失 ,但生物群中已出现少量三叠纪分子 Late Pleistocene Changxing fauna is preserved in the upper siliceous rocks of Changxing Formation in Liuqiao area, southern Nanning, Guangxi. There are 39 species of 2 4 genera and 9 species, of which 3 are new species, of which Ltententifistularia is most common, followed by Albaillellidae And Entactiniidae, belonging to the Late Permian N eoal-baillella optima combination. Associated organisms have foraminifera, sponge spicules, brachiopods and so on. Most species disappear near the Permian-Triassic boundary, but a few Triassic molecules have appeared in the biota