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A New Eusauropod Dinosaur from the Lower Cretaceous of Guangxi Province, Southern China
投稿时间:2010-04-01  修订日期:2010-09-01  点此下载全文
引用本文:MO Jinyou, XU Xing and Eric BUFFETAUT.2010.A New Eusauropod Dinosaur from the Lower Cretaceous of Guangxi Province, Southern China[J].ACTA GEOLOGICA SINICA(English edition),84(6):1328~1335
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MO Jinyou, XU Xing and Eric BUFFETAUT 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China
2 Natural History Museum of Guangxi, Nanning 530012, China
3 Institute of Vertebrate Paleontology and Paleoanthropology, Beijing 100044, China
4 CNRS, UMR 8538, Laboratoire de Geologie de l'Ecole Normale Superieure, 24?rue Lhomond, 75231 Paris Cedex 05, France 
基金项目:This research is supported by the National Natural Science Foundation of China to Mo Jinyou (40862001) and the Chinese Academy of Sciences to Xu Xing.
中文摘要:A new sauropod dinosaur, Liubangosaurus hei gen. et sp. nov., is erected based on a specimen represented by five articulated middle-caudal dorsal vertebrae, which was discovered in the Lower Cretaceous Napai Formation of Guangxi Province, southern China. This new taxon is diagnosed by a unique combination of derived features: prezygapophysis closely contacts with parapophysis, with the prdl and prpl absent; presence of cavity on the dorsal surface of the diapophysis; neural spine very low, with its distal end level with that of diapophysis; distal end of the neural spine strongly expanded laterally to form a platform; marked fossa formed between the infradiapophyseal lamina and the parapophysis; broad, flat area of featureless bone on lateral surface of neural arch; vertically directed infradiapophyseal lamina expands or bifurcates ventrally to form a inverted “Y”; highly positioned parapophyses large and tear-drop in shape. The discovery of this new taxon increases the diversity of sauropods in China during the Early Cretaceous.
中文关键词:Eusauropoda, Liubangosaurus hei, Napai Formation, Early Cretaceous, Guangxi, China
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