New Permian-Triassic conodont data from Selong (Tibet) and the youngest occurrence of Vjalovognathus

Abstract

Abstract:The controversial biostratigraphy of the well-known Permo-Triassic (P-T) boundary section at Selong, South Tibet is reinvestigated based on large conodont samples. The conodont data in this study confirm that the upper part of Selong (Changshingian). The last species V. carinatus sp. nov. is also found in the pre-mass extinction beds at Guryul Ravine, Kashmir allowing correlation with South Tibet.

Facies and evolution of the carbonate factory during the Permian–Triassic crisis in South Tibet, China

“…() and Wang et al . (). Red lines mark the Permian–Triassic, Griesbachian–Dienerian and Spathian–Anisian boundaries (solid line is determined and dashed line is undetermined).…”

“…The Selong section is located at Selong village, 77 km north‐west of the capital of old Tingri County. Detailed conodont biostratigraphy has been carried out and a high‐resolution biostratigraphic framework has been established there (Orchard et al ., ; Wang et al ., ; Yuan et al ., ). The 24 m thick, uppermost Permian Selong Group (Lopingian in age) can be divided into a lower bioclastic rudstone intercalated with dark grey silty shale and an upper, massive crinoid grainstone.…”

Geological treasure of Guryul ravine section in Kashmir Himalaya – a case report

“…The Guryul Ravine P-Tr boundary succession in the Kashmir Himalaya belongs to the peri-Gondwanan region that covered the northern margin of Gondwana and the southern margin of Palaeotethys/Neo-Tethys (Fig. 3) Wang et al 2017;Brookfield et al 2019). It was considered as a standard reference section (SRS) for both upper Permian and lower Triassic biostratigraphy and provided an excellent P-T boundary record .…”

Early Triassic oceanic red beds coupled with deep sea oxidation in South Tethys

“…The Selong section (28°40′15″N， 85°49′36″E) is located near the village of Selong, 77 km NW of old Tingri County where the Lower Triassic Kangshare Formation has a well-established biostratigraphy based on conodonts and ammonoids (Orchard et al, 1994;Wang Z.H. and Wang Y.G., 1995;Shen et al, 2006;Wang et al, 2017;Yuan et al, 2018). It 5 is divided into three units in ascending order: a ~4 m thick limestone yielding the Smithian ammonoid Nyalamites angustecostatus and Owenites carpenteri (Fig.…”