有孔虫属于海生的原生动物,被自然因素保存在岩层中的这类化石体,标志着海相沉积或与古残海有着密切的联系。研究院古生物研究室的研究人员,最近在分析处理准噶尔盆地东部沙帐地区的井下样品时。首次在一块第三系的岩心中,发现了有孔虫类的圆盘虫(Discorbis)化石,与其同层位的微体化石尚有半咸 Foraminifera, which belongs to the marine protozoa, is a fossil body preserved in the rock by natural factors, which indicates the marine sediments or is closely related to the ancient Marhai Sea. Researchers from the Institute of Paleontology, recently analyzed and analyzed downhole samples from the Shajiao area in the eastern Junggar Basin. For the first time in a Tertiary core, foraminiferal Discorbis fossils were found, with the same level of half-salty