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该文赞同以Ｈｉｎｄｅｏｄｕｓｐａｒｖｕｓ的首次出现作为划分二叠－三叠系界线的生物标志．笔者强调只有以正模及其描述为准所厘订的Ｈ．ｐａｒｖｕｓ，且以主齿、细齿均保存完美、距界线粘土层顶面位置最低以及其顶面至界线生物面之上均为单一岩相的Ｈ．ｐａｒｖｕｓ的首次出现点位，才有可能成为二叠－三叠系全球界线层型剖面点的位置．东岭剖面可以它典型的Ｈ．ｐａｒｖｕｓ距界线粘土层顶面仅高出１３ｃｍ，化石保存完好以及界线粘土层至Ｐ／Ｔ界线附近均为单一的灰泥岩三特点弥补煤山剖面之不足．为使作为二叠－三叠系全球界线层型剖面点（ＧＳＳＰ）的候选剖面的浙江长兴煤山剖面更臻完善，特推荐东岭剖面作为煤山剖面的辅助剖面
This paper is in agreement with the first appearance of Hindeodus parvus as a biomarker for the division of the Permian-Triassic boundary. The author emphasizes that only the positive model and its description shall prevail. parvus, and the main teeth, fine teeth are preserved perfectly, from the top of the boundary line of the lowest level of the clay layer and its top surface to the boundary biological surface are single lithofacies H. The first appearance of parvus is likely to be the location of the Permian-Triassic global boundary layer profile point. Dongling profile can be its typical H. The parvus is only 13 cm above the top of the boundary clay layer, the fossils are well preserved and the three characteristics of the single gray mudstone near the boundary of the boundary clay layer to the P / T boundary make up for the lack of the coal seam section. In order to further improve the profile of Changshan Meishan, a candidate section of the Permian-Triassic Global Boundary Profile Point (GSSP), the Dongling profile is recommended as an auxiliary profile for the Meishan profile