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对江西修水清水岩乡东岭剖面和乐平沿沟剖面的再研究表明，ＨｉｎｄｅｏｄｕｓｐａｒｖｕｓＭｏｒｐｈｏｔｙｐｅ１在东岭剖面首现于大冶组的最低层位，生物地层界线与岩石地层界线一致，仅比事件地层界线高５－６ｃｍ。沿沟剖面Ｈｉｎｄｅｏｄｕｓｐａｒｖｕｓ带厚仅３６ｃｍ，其首现与岩石地层界线也一致。张克信等提出的Ｈ．ｌａｔｉｄｅｎｔａｔｕｓ→Ｈ．ｐａｒｖｕｓ→Ｈ．ｔｕｒｇｉｄｕｓ→Ｉ．ｉｓａｒｃｉｃａ的演化谱系需作进一步修正。依据华南的资料，本文第一作者提出新的演化谱系：Ｈ．ｌａｔｉｄｅｎｔａｔｕｓ→Ｈ．ｐａｒｖｕｓ→Ｉ．ｓｔａｅｓｃｈｅｉ→Ｉ．ｉｓａｒｃｉｃａ。Ｈ．ｔｕｒｇｉｄｕｓ并不在此演化系列中，它属Ｈｉｎｄｅｏｄｕｓ的另一分枝。二叠三叠系界线层的牙形刺应区分出浮游相与浅水相。在浮游相，牙形刺序列为：（１）ＣｌａｒｋｉｎａｃｈａｎｇｘｉｎｇｅｎｓｉｓＣ．ｄｅｆｌｅｃｔａ带，（２）Ｃ．ｃａｒｉｎａｔａ带，（３）Ｃ．ｐｌａｎａｔａ带。在浅水相，牙形刺序列为：（１）Ｈ．ｌａｔｉｄｅｎｔａｔｕｓ带，（２）Ｈ．ｐａｒｖｕｓ带，（３）Ｉ．ｓｔａｅｓｃｈｅｉ带，（４）Ｉ．ｉｓａｒｃｉｃａ带，（５）Ｈ．ｐｏｓｔｐａｒｖｕｓ带?
The re-study of Dongling and Leping gully sections in Shixiang, Shui Shui, Jiangxi Province shows that the Hindeodus parvus Morphotype1 first appeared in the lowest layer of Daye Formation in the Dongling section, and the boundaries between bio-formation and lithostratigraphy are the same. Strata boundary high 5-6cm. Hindeodus parvus along the trench profile with only 36cm thick, the first show and the rock stratigraphy boundaries are also consistent. Zhang et al. latidentatus → H parvus → H turgidus → I. The evolutionary isoforms of isarcica require further refinement. According to the information in South China, the first author of this paper proposes a new evolutionary pedigree: latidentatus → H parvus → I. staeschei → I. isarcica. H. Turgidus is not in this evolutionary series, it belongs to another branch of Hindeodus. The conodont of the Permian-Triassic boundary line should distinguish the planktonic phase from the shallow water phase. In the planktonic phase, the conodont sequence is: (1) Clark acaciaxingensis C. deflecta band, (2) c. carinata band, (3) c. Planata belt. In shallow water, the conodont sequence is: (1) H. latidentatus belt, (2) H. parvus band, (3) I. Staeschei band, (4) I. isarcica band, (5) H. Postparvus band?