牙形刺、有孔虫和菊石是全球维宪阶与谢尔普霍夫阶界线层生物地层研究的重要化石门类。该界线定义及其候选层型剖面目前均未正式确立。详细介绍并讨论以牙形刺或有孔虫作为界线定义的可能方案 ,指出潜在的候选层型剖面存在于南乌拉尔的 Verkhnyaya Kardailovka、北美犹太州中西部的 Chainm an组等 ,我国具有潜在研究价值的剖面有广西忻城里苗剖面、贵州水城滥坝老街水库剖面和罗甸纳水剖面 Conodonts, foraminifera and ammonites are important fossil species in the study of the biostratigraphy of the boundary layer between the Vysehlinian and Serpukhoff. The definition of the boundary line and its candidate stratigraphic sections are not currently formally established. This paper introduces and discusses in detail the possible solutions defined by the definition of conodonts or foraminifera. It is pointed out that potential candidate layer profiles exist in Verkhnyaya Kardailovka in the Southern Urals, the Chain Group in the central and western Jewish states of North America, etc. Our country has potential research value The profiles are Xincheng Lizimen section in Guangxi, Guizhou Shicheng Dabaocha reservoir section and the Rodetia water profile