| 翻訳と辞書 |
| Orthogoniosaurus ： ウィキペディア英語版 |
Orthogoniosaurus
''Orthogoniosaurus'' (meaning "straight angled lizard", referring to the straight posterior edge of its type tooth) was a genus of theropod dinosaur from the late Maastrichtian-age Upper Cretaceous Lameta Formation of Jabalpur, India. It is based on one small, fragmentary tooth (preserved section 27 mm (in ) long).〔Das-Gupta, H.C. (1931). On a new theropod dinosaur (''Orthogoniosaurus matleyi'', n. gen. et n. sp.) from the Lameta beds of Jubbulpore. ''Journal of the Asiatic Society of Bengal, New Series'' 16(20):367-369.〕
Because it is the earliest published name for a Lameta theropod, it has sometimes been used as a synonym for other contemporaneous theropods, such as ''Indosaurus'' and ''Indosuchus''.〔Romer, A.S. (1956). ''Osteology of the Reptiles''. University of Chicago Press:Chicago 1-772. ISBN 0-89464-985-X〕 As a tooth taxon, however, such usage has been discouraged.〔Walker, A.D. (1964). Triassic reptiles from the Elgin area: ''Ornithosuchus'' and the origin of carnosaurs. ''Philosophical Transactions of the Royal Society of London, Series B'' 248(744):53-134.〕 Ralph Molnar in 1990 noted that the form of the tooth was most like teeth from the rear of theropod jaws, although the lack of serrations on the leading edge was unusual.〔Molnar, R.E. (1990). Problematic Theropoda: "Carnosaurs". In: Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). ''The Dinosauria''. Berkeley and Los Angeles: University of California Press:Berkeley and Los Angeles, p. 306-317. ISBN 0-520-06727-4〕 In the most recent review, it was considered to be a dubious ceratosaurian.〔Tykoski, R.S., and Rowe, T. (2004). Ceratosauria. In: Weishampel, D.B., Dodson, P., and Osmolska, H. (eds.). ''The Dinosauria'' (second edition). University of California Press:Berkeley, 47-70. ISBN 0-520-24209-2〕
"Massospondylus" ''rawesi'', another tooth taxon,〔Lydekker, R. (1890). Note on certain vertebrate remains from the Nagpur District. ''Records of the Geological Survey of India'' 23:20-24.〕 but from probable Upper Triassic rocks, is sometimes given as a second species of this genus, but it may not be dinosaurian, and could be substantially older.〔Peter Galton quoted in: Glut, D.F. (1997). ''Dinosaurs: The Encyclopedia''. McFarland & Company:Jefferson, North Carolina, p. 654. ISBN 0-89950-917-7.〕
==See also==
* Timeline of ceratosaur research
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「Orthogoniosaurus」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|