Discovery of fossil Nemacheilids (Cypriniformes,Teleostei,Pisces) from the Tibetan Plateau,China

作     者：WANG Ning CHANG Mee-mann 

作者机构：Key Laboratory of Evolutionary Systematics of VertebratesInstitute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of Sciences 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2012年第55卷第5期

页      面：714-727页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：supported by the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KZCX2-YW-Q09) National Basic Research Program of China (Grant No. 2012CB821900) National Natural Science Foundation of China (Grant No. 40802010) Key Laboratory of Evolu-tionary Systematics of Vertebrates,IVPP,CAS (Grant No. 2011LESV005) 

主　　题：Nemacheilidae Triplophysa Pliocene Kunlun Pass Basin northeastern Tibetan Plateau 

摘      要：Here described are the nemacheilid fossils from the Pliocene Lower Member of Qiangtang Formation in the Kunlun Pass Basin,northeastern Tibetan Plateau,at a locality 4769 m above the sea level (a.s.l.).The materials consist of numerous disarticulated and incomplete *** fish remains are assigned to the Nemacheilidae based on the fused compound centrum of the 2nd and 3rd vertebrae with developed bifurcate lateral processes of the 2nd *** fossils also include the maxilla,the dentary,the anguloarticular,the quadrate,the hyomandibular,the opercle,the basihyal,the urohyal,the anterior ceratohyal,the posterior ceratohyal,the interhyal and the *** bones are very similar to their counterparts in some species of a Recent nemacheilid genus,Triplophysa (Nemacheilidae,Cypriniformes),which is widely distributed on the Tibetan *** nemacheilid fossils are much more abundant than the remains of schizothoracines embedded in the same horizon at the same *** would imply that the number of individuals of Triplophysa was much higher than that of schizothoracines when they were alive in the *** Recent ichthyofauna of the Tibetan Plateau,Triplophysa prevails over schizothoracines in the number of individuals in the high elevations and small water *** on the fossil dominance of Triplophysa over schizothoracines and their taphonomical conditions,it appears that the water system at the Kunlun Pass area during the Pliocene might not be extensive lakes or large rivers with broad *** might have been a few mountainous,relatively torrential rivers with many small,shallow streams connecting the water systems from the north and south of the East Kunlun *** environment of the Kunlun Pass Basin area during the Pliocene must be very harsh,and the altitude of the area might already have been higher than we previously *** uplift of the area must be less than 1000 m since the Pliocene.