|
''Chungkingosaurus'', meaning "Chongqing Lizard", is a genus of herbivorous dinosaur from the Late Jurassic Upper Shaximiao Formation in what is now China. It is a member of the Stegosauria. ==Discovery and species== Fossils of ''Chungkingosaurus'' were found near Chongqing, China, from 1977 onwards. The type species, ''Chungkingosaurus jiangbeiensis'', was named and described by Dong Zhiming, Zhou Shiwu, and Zhang Yihong in 1983. The generic name refers to Chonqqing in Sichuan. The specific name refers to the district of Jiangbei.〔Z. Dong, S. Zhou, and Y. Zhang, 1983, "(from the Jurassic of Sichuan )". ''Palaeontologica Sinica, New Series C'', 162(23): 1-136〕 The holotype, CV 00206, was found in the Chunking Group of the Upper Shaximiao Formation. It consists of a partial skeleton, containing the snout, the front of the lower jaws, ten dorsal vertebrae, a pelvis with sacrum, a series of twenty-three tail vertebrae, the lower end of a humerus, three metacarpals, both thighbones and shinbones and five back plates.〔 Dong e.a. in 1983 described three additional species. These were not separately named but identified as ''Chungkingosaurus'' sp. 1-3. ''Chungkingosaurus'' sp. 1 was based on specimen CV 00207, a pelvis with sacrum. The next species, ''Chungkingosaurus'' sp. 2, was based on specimen CV 00205, a partial skeleton. The last species, ''Chungkingosaurus'' sp. 3, was based on specimen CV 00208, a series of ten vertebrae of a tail end with an articulated thagomizer.〔 In 2006, Susannah Maidment and Wei Guangbiao considered ''Chungkingosaurus'' a valid genus, even though much of the material could no longer be localised. Specimen CV 00207 was by them no longer referred to ''Chungkingosaurus''.〔S. C. R. Maidment and G. Wei, 2006, "A review of the Late Jurassic stegosaurs (Dinosauria, Stegosauria) from the People's Republic of China", ''Geological Magazine'' 143(5): 621-634〕 However, Gregory S. Paul in 2010 suggested that ''Chungkingosaurus'' was the juvenile of ''Tuojiangosaurus''.〔Paul, G.S., 2010, ''The Princeton Field Guide to Dinosaurs'', Princeton University Press p. 221〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chungkingosaurus」の詳細全文を読む スポンサード リンク
|