原始菊石群在亚洲大陆至今未有正式报道。近年来,由于我国地质事业的大发展,1959 年地质队于广西南丹县罗富首次发现了原始类型的菊石化石。之后地质普查大队和科研队几次前往该地一带观测剖面,系统采集化石,获得了较丰富的原始菊石群、三叶虫、腕足类、珊瑚等化石,初步确定了一套地层层序及其时代。 The original ammonite group in Asia has so far not been officially reported. In recent years, due to the great development of geology in our country, the geology team discovered the primitive type of ammonite fossils for the first time in 1959 in Luo Fu, Nandan County, Guangxi. After that, the geological census brigade and scientific research team visited the area several times to observe the section, collected fossils systematically, and obtained relatively rich primitive ammonites, trilobites, brachiopods, corals and other fossils, initially determined a set of stratigraphic sequences and Its time.