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把二叠三叠系界线置于Ｈｉｎｄｅｏｄｕｓｐａｒｖｕｓ带的底部，即以Ｈ．ｐａｒｖｕｓ的首次出现作为三叠纪的开始，是目前大多数学者采纳的划分方案．由于Ｈ．ｐａｒｖｕｓ的鉴定分歧较大，导致Ｈ．ｐａｒｖｕｓ在各剖面“首次出现”的层位，特别是点的位置，缺乏共同的标准和藉以对比的标志．文中分析了Ｈ．ｐａｒｖｕｓ种的标准性及首次出现的点的位置．以ＫｏｚｕｒａｎｄＰｊａｔａｋｏｖａ（１９７６）描述的正模（ｆｉｇ．１ｂ）为标准，参考克什米尔ＧｕｒｙｕｌＲａｖｉｎｅ剖面和江西修水东岭剖面产出的Ｈ．ｐａｒｖｕｓ，提出了Ｈ．ｐａｒｖｕｓ标准种的特征，并对其首次出现的点的位置作了详尽的分析．作者建议以ＫｏｚｕｒａｎｄＰｊａｔａｋｏｖａ（１９７６）的正型标本为准，且主齿、细齿均保存完整的Ｈｉｎｄｅｏｄｕｓｐａｒｖｕｓ在单一岩性的连续剖面上的首次出现的点的位置，作为二叠三叠系生物地层界线的划分标准．从目前所获资料分析，江西修水东岭剖面完全符合ＧＳＳＰ条件．深入研究，可望找到二叠三叠系界线的“金钉子”，为我国长兴煤山剖面列入ＧＳＳＰ候选剖面提供一条颇有价值的辅助剖面．
The Permian-Triassic boundary line is placed at the bottom of the Hindeodusparvus zone, ie at H. The first appearance of parvus, as the beginning of Triassic, is the division scheme adopted by most scholars at present. Since H. The identification of parvus divergence, leading to H. The “first appearance” of parvus at each section, especially the location of the spots, lacks common standards and contrasts. In this paper, we analyze H. The standard of parvus species and the location of the first spot. Take the positive mode (fig.1b) described by Kozurand Pjatakova (1976) as a guideline and refer to the GuryulRavine section of Kashmir and the section H of the East Ridge section of Xiushui, Jiangxi. Parvus, proposed H. parvus standard species characteristics, and the location of the first occurrence of its point made a detailed analysis. The author suggests that positive specimens of Kozurand Pjatakova (1976) shall prevail, and the primary teeth and fine teeth both preserve the position of the first occurrence of a complete Hindeodus parvus on a continuous lithospheric continuum as a Permian-Triassic bio-formation Division of the boundaries of the standard. According to the analysis of the data obtained so far, the profile of Xiu-Shui Dongling in Jiangxi Province fully complies with the GSSP conditions. Further research is expected to find “gold nails” in the Permian-Triassic boundary and provide a valuable auxiliary profile for inclusion of GSSP candidate profiles in the section of Meishan, Changxing, China.