古脊椎动物学报2022，Vol.60Issue(1)：54-58,5.DOI:10.19615/j.cnki.2096-9899.210810
陕西鄂尔多斯盆地中三叠统一离片椎类牙齿化石
A Temnospondyl tooth from the Middle Triassic of the Ordos Basin,Shaanxi Province
摘要
Abstract
An isolated large temnospondyl tooth was discovered from the Middle Triassic Tongchuan Formation,Weibei Oilfield,Ordos Basin,Shaanxi Province of China.Compared with the teeth of crocodylomorphs,plesiosaurs and temnospondyls,the tooth can be referred to temnospondyl based on the following features:the crown is elongated and recurved with a circular cross-section;there are no denticles or carinae on the crown;well-marked apicobasal grooves are shown on the crown surface.This tooth represents the first temnospondyl found in the Middle Triassic Tongchuan Formation and is the youngest fossil record of temnospondyls in the North China Block.关键词
鄂尔多斯盆地/中三叠世/铜川组/离片椎类/牙齿Key words
Ordos Basin/Middle Triassic/Tongchuan Formation/Temnospondyli/tooth分类
生物科学引用本文复制引用
武瑞,涂黎,韩凤禄..陕西鄂尔多斯盆地中三叠统一离片椎类牙齿化石[J].古脊椎动物学报,2022,60(1):54-58,5.基金项目
国家自然科学基金基础科学中心项目(批准号:41688103)资助.The authors thank Lin Qixiang and Ruan Xiaoyan (CUG,Wuhan) for providing information,Zhang Muhui (CUG,Wuhan) for CT photographing,and Liu Jun(IVPP) for fossil identification and their very helpful comments on the manuscript.This study is supported by the National Natural Science Foundation of China (41688103). （批准号:41688103）
