本文首次报导了广西鹿寨寨沙榴江群标准剖面的晚泥盆世牙形刺,详细探讨了它们的分带及在地层划分和对比中的意义。本文还初步讨论了榴江群的演变、再分和时代问题。由于榴江群的创立时间较早,后来几经修正,涉及的问题较多,因此,笔者觉得有必要对此作一个简短的历史回顾。 This paper reports for the first time the Late Devonian conodonts in the standard profile of the Sagu River in Luzhai, Guangxi, and discusses the significance of their zonation and stratigraphic division and contrast. This article also initially discussed the evolution, sub-division and the questions of the times. Since the creation of the Lijiang Group took place earlier and later amended, there are more problems involved. Therefore, I think it is necessary to make a brief historical review.