湖北东部黄石一带,历年来被归为中石炭统底部的白云岩段,有时称为“大埔组”,常与广西大埔组或宁镇山脉的老虎洞组相对比。但迄今为止均未采到生物化石。1976年,盛金章等报道南京金丝岗地区老虎洞组白云岩中采到Diphyphyllum sp.及Lithostrotion sp.等珊瑚化石,而归于早石炭世;嗣后,陈敏娟等(1980)报道,江苏龙潭黄龙山及南京附 The Yellowstone area in eastern Hubei has been classified as dolomite at the bottom of the Carboniferous over the years, sometimes referred to as the “Dapu Formation” and often compared with the tiger cave formation in the Dapu Formation or Ningzhen Mountains in Guangxi. But so far no biological fossils have been taken. In 1976, Sheng Jinzhang et al. Reported that the coral fossils of Diphyphyllum sp. And Lithostrotion sp. Were found in the Dolomite of the Tiger Cave Group in the Jinshigang area, Nanjing, and were attributed to Early Carboniferous. Subsequently, Chen Minjuan et al. (1980) Nanjing attached