• 责任者：Yuan Dongxun (State Key Laboratory of Palaeobiology and Stratigraphy ; Nanjing Institute of Geology and Palaeontology ; Chinese Academy of Sciences ; Nanjing 210008 ; China) ; Shen Shuzhong
• 刊名：Acta Palaeontologica Sinica
• 出版年：2011
• 卷期：50(4)
• 关键词：二叠纪 ; Permian ; 三叠纪 ; Triassic ; 牙形石 ; conodonts ; 生物地层学 ; biostratigraphy ; 重庆 ; Chongqing
• 页码：p.420-438
• 图表：3 illus., 4 plates, 57 refs.
• 分类号：1200
• 出版序号：20122593
• issnNo：ISSN0001-6616
• isbnNo：CN32-1188/Q

ChDivSummary name="EnDivSummary">The taxonomy and stratigraphic distributions of conodonts from the Permian-Triassic boundary beds of the Liangfengya Section at Zhongliang Hill,Chongqing,are described. Based on their stratigraphic distribution,the changeover from the Clarkina-dominated to the Hindeodus-dominated populations of conodonts occurs in the horizon between samples 30~1 and 30~2. At this horizon, numerous associated brachiopod, fusulinid and coral species also disappeared except for a few small and thin-shelled brachiopods which survived into the basal Triassic. This extinction pattern is generally comparable with that at the Meishan Section in terms of timing and diversity change. The Permian-Triassic boundary at the Liangfengya Section is at the base of Bed 34 as indicated by the first occurrence of the conodont Hindeodus parvus.