典型文献
Tooth Plates of Ceratodus(Dipnoi,Ceratodontidae)from the Upper Jurassic Shaximiao Formation of Guang'an,Sichuan Province,China
文献摘要：
Ceratodus is a form genus of ceratodontid lungfishes.Until now,only 14 specimens have been reported from the Mesozoic of China.Detailed measurements and characteristic comparisons based on 15 well-preserved lungfish tooth plates of Ceratodus type,uncovered from the upper member of the Upper Jurassic Shaximiao Formation at Luojiashan,Qianfeng District,Guang'an,Sichuan Province in 2019,allow us to establish a new species,Ceratodus guanganensis sp.nov.,on the basis of its small swollen irregular triangular tooth plate with four low and swollen radial crests on the occlusal surface without denticles.Other specimens from the same locality can be referred to C.szechuanensis and C.youngi.This is the first discovery of Ceratodus in the Guang'an region and represents the fifth Ceratodus fossil site in the Sichuan Basin.The discovery indicates that the climate was hot and arid in the Sichuan Basin during the Late Jurassic,and reveals a tectonic paleogeographic relationship between the Yangtze block in southwestern China and the Kola Basin in northern Thailand.
文献关键词：
中图分类号：
作者姓名：
WANG Zizheng;JIANG Xinsheng;WANG Xiaobing;GAO Jianguo;ZHU Sibao
作者机构：
Chengdu Center of China Geological Survey,Chengdu 610081,China;Center for Fossil Restoration and Research,Key Laboratory of Northeastern Asia Paleontological Evolution,Ministry of Natural Resource,Chongzhou,Chengdu 611247,China;Chongzhou Tianyan Museum,Chongzhou,Chengdu 611247,China;College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China
文献出处：
引用格式：
[1]WANG Zizheng;JIANG Xinsheng;WANG Xiaobing;GAO Jianguo;ZHU Sibao-.Tooth Plates of Ceratodus(Dipnoi,Ceratodontidae)from the Upper Jurassic Shaximiao Formation of Guang'an,Sichuan Province,China)[J].地质学报（英文版）,2022(03):766-775
A类：
Ceratodus,Dipnoi,Ceratodontidae,Shaximiao,ceratodontid,lungfishes,lungfish,Luojiashan,Qianfeng,guanganensis,crests,denticles,youngi
B类：
Tooth,Plates,from,Upper,Jurassic,Formation,Guang,Sichuan,Province,China,form,genus,Until,now,only,specimens,have,been,reported,Mesozoic,Detailed,measurements,characteristic,comparisons,well,preserved,tooth,plates,type,uncovered,upper,member,District,allow,establish,new,species,nov,basis,its,small,swollen,irregular,triangular,four,radial,occlusal,surface,without,Other,same,locality,can,referred,szechuanensis,This,first,discovery,region,represents,fifth,fossil,site,Basin,indicates,that,climate,was,hot,arid,during,Late,reveals,tectonic,paleogeographic,relationship,between,Yangtze,block,southwestern,Kola,northern,Thailand
AB值：
0.497824
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