The Guryul Ravine section in Kashmir, northern India is an important reference section for global Lower Triassic stratigraphy. Once a candidate Global Stratotype Section and Point (GSSP) for the Permian-Triassic Boundary (PTB), the section has attracted intense attention for the PTB beds, but few studies have concerned the entire Lower Triassic stratigraphy. As one of the most continuous marine Lower Triassic successions on the northern margins of Gondwana, the Guryul Ravine section provides an important conodont biostratigraphic yardstick for worldwide correlations. This study presents recent results of the Lower Triassic conodont zonation from the Guryul Ravine section. A total of 6500 elements including 1600 P₁ elements were recovered. Ten conodont zones were recognized from the Griesbachian to Spathian: Hindeodus parvus, Isarcicella staeschei, Clarkina planata, Neoclarkina krystyni, Neospathodus dieneri, Ns. pakistanensis, Novispathodus waageni, Scythogondolella mosheri, Nv. pingdingshanensis, and Nv. abruptus – Nv. brevissimus zones. The PTB is placed within Bed 52 in Unit E2, 80 cm above the base of Unit E2, based on the first occurrence (FO) of H. parvus. The Induan–Olenekian boundary (IOB) is tentatively placed at the base of Member G according to the positive maximum δ¹³C_carb values, but it could be slightly higher based on conodonts. The Smithian-Spathian boundary (SSB) is drawn at the top of Member H based on the FO of Nv. pingdingshanensis and the carbon mdpt(N3-P3). Several conodont taxa are newly recognized near the top of the study section where the conodont fauna is dominated by segminiplanate elements of the Neogondolellinae. Many of these age-diagnostic species have been identified in other sections around the world, and their occurrence in Guryul Ravine supports their potential for worldwide correlation. The conodont sequence erected from the study section corresponds well to those of South China (e.g. Meishan) and elsewhere worldwide. The newly established conodont zonation from Kashmir provides a high precision time-frame to consider biotic evolution and environmental change during the Early Triassic, a crucial period of Earth history.

印度北部克什米尔的古留尔峡谷剖面是全球下三叠统地层学的重要参考剖面。作为二叠纪-三叠纪边界（PTB）的候选全球层型剖面和点（GSSP），该剖面引起了PTB层的强烈关注，但很少有研究涉及整个下三叠统地层。作为冈瓦纳大陆北缘最连续的海相下三叠纪序列之一，Guryul Ravine 剖面为全球相关性提供了重要的牙形石生物地层尺度。本研究展示了 Guryul Ravine 剖面的下三叠统牙形石分带的最新结果。共回收了 6500 个元素，包括 1600 个 P ₁元素。从 Griesbachian 到 Spathian 有 10 个牙形石带：Hindeodus parvus , Isarcicella staeschei , Clarkina planata , Neoclarkina krystyni , Neospathodus dieneri , Ns。pakistanensis , Novispathodus waageni , Scythogondolella mosheri , Nv. 平顶山, 和Nv. abruptus - Nv。短肌区。根据H. parvus的第一次出现 (FO)，PTB 被放置在单元 E2 的床 52 内，位于单元 E2 底部上方 80 厘米处。Induan-Olenekian 边界 (IOB) 根据正最大值 δ ¹³ C暂时放置在 G 段的底部_{碳水化合物}值，但根据牙形石可能略高。Smithian-Spathian 边界 (SSB) 根据Nv的 FO 在成员 H 的顶部绘制。平顶山种和碳 mdpt(N3-P3)。在研究部分的顶部附近新发现了几个牙形石类群，那里的牙形石动物群以 Neogondolellinae 的 segminiplanate 元素为主。许多这些年龄诊断物种已在世界其他地区被发现，它们在 Guryul Ravine 的出现支持了它们在全球范围内相关的潜力。从研究剖面竖立的牙形石序列与华南（如梅山）和世界其他地方的牙形石序列非常吻合。来自克什米尔的新建立的牙形石分带提供了一个高精度的时间框架来考虑早三叠世期间地球历史的关键时期的生物进化和环境变化。