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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Simbirskiasaurus ： ウィキペディア英語版 Simbirskiasaurus ''Simbirskiasaurus'' is an extinct genus of Ichthyosaur from the Early Cretaceous (early Barremian) of Ulyanovsk Province, Russia.〔Valentin Fischer, Maxim S. Arkhangelsky, Darren Naish, Ilya M. Stenshin, Gleb N. Uspensky and Pascal Godefroit (2014) Simbirskiasaurus and Pervushovisaurus reassessed: implications for the taxonomy and cranial osteology of Cretaceous platypterygiine ichthyosaurs. Zoological Journal of the Linnean Society 171(4): 822–841. http://onlinelibrary.wiley.com/doi/10.1111/zoj.12158/abstract〕 Its type specimen is YKM 65119, a fragmentary skull and vertebral column. 〔Storrs, G. W., M. S. Arkhangel'skii and V. M. Efimov. 2000. Mesozoic marine reptiles of Russia and other former Soviet republics. pages 187-210 In Benton, M. J., M. A. Shiskin, D. M. Unwin and E. N. Kurochkin, (eds.), The Age of Dinosaurs in Russia and Mongolia, Cambridge University Press, Cambridge.〕 ==Description== Fischer ''et al''. give the diagnosis of ''Simbirskiasaurus'' as follows: "Platypterygiine ophthalmosaurid characterized by the following autapomorphies: external naris divided by a nasomaxillary pillar; posterior opening of the narial complex with anteroposteriorly constricted dorsal extension; deeply interdigitating prefrontal–lacrimal suture (of the basal neoichthyosaurian ''Temnodontosaurus platyodon'' (Conybeare, 1822); see Godefroit, 1993 ). ''Simbirskiasaurus birjukovi'' is also characterized by the following unique combination of features: subnarial process of the premaxilla reaches the posterior margin of the external naris (shared with ''Cryopterygius kristiansenae'' Druckenmiller ''et al''., 2012); elongated anterior process of the maxilla, reaching anteriorly the level of the nasal (in ''Aegirosaurus leptospondylus'' Bardet & Fernández, 2000 and ''Sveltonectes insolitus'' (Fischer ''et al''., 2011b) ); pres- ence of a supranarial process of the premaxilla (with ''Platypterygius australis'' (McCoy, 1867), see Kear, 2005, and possibly ''Pervushovisaurus bannovkensis'' (Arkhangelsky, 1998b) )."〔 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「Simbirskiasaurus」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.