A New Somphospondylan Sauropod (Dinosauria, Titanosauriformes) from the Late Cretaceous of Ganzhou, Jiangxi Province of Southern China

查看全文 作　　者：Lü [1]Junchang;YI [2]Laiping;ZHONG [2]Hui;WEI [1]Xuefang

机构地区：[1]Institute of Geology, Chinese Academy of Geological Sciences;[2]Ganzhou Museum of Natural History

出　　处：《Acta Geologica Sinica(English Edition)》索引2013年第87卷第3期,共8页

基　　金：supported by the Natural Science Foundation of China (41272022, 90914003) 摘　　要：A new somphospondylan sauropod (Dinosauria, Titanosauriformes): Gannansaurus sinensis gen. et sp. nov. from the Late Cretaceous Nanxiong Formation of Ganzhou Basin, Jiangxi Province of southern China is erected based on one nearly complete dorsal vertebra and a mid-caudal vertebra. It is characterized by two centroprezygapophyseal lamina fossae; large, square-shaped concavity formed by centroprezygapophyseal lamina and dorsal margin of the centrum; large infraparapophyseal fossa; three openings present within the large lateral concavity, which occupy 65% length of the centrum; the posterior centroparapophyseal lamina (PCPL) and the anterior centroparapophyseal lamina (ACPL) weakly developed; the posterior centrodiapophyseal lamina (PCDL) separated by an infradiapophyseal fossa into two branches dorsally; parapophyseal and diapophyseal laminae cross to form 'K' configuration. It shares some characters with the Early Cretaceous form-Euhelopus, indicating that it is more closely related to Euhelopus rather than to other titanosauriform sauropods. This means Gannansaurus may have a close phylogenetic relationship with Euhelopus. 关键词：蜥脚类恐龙晚白垩世中国南部江西省赣州冬虫夏草早白垩世亲缘关系

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A New Somphospondylan Sauropod (Dinosauria, Titanosauriformes) from the Late Cretaceous of Ganzhou, Jiangxi Province of Southern China

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