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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 Lapparentosaurus ： ウィキペディア英語版 Lapparentosaurus ''Lapparentosaurus'' is a genus of macronarian sauropod dinosaur from the Middle Jurassic. Its fossils were found in Madagascar. In 1895 Richard Lydekker named a new species of ''Bothriospondylus'', ''B. madagascariensis'' based on fossils found before 1894 by J.T. Last in the Majunga Basin in layers of the Bathonian, the Isalo III Formation.〔R. Lydekker, 1895, "On bones of a sauropodous dinosaur from Madagascar", ''Quarterly Journal of the Geological Society of London'' 51: 329-336〕 Because there was no real connection with this English form, in 1986 José Fernando Bonaparte named a separate genus.〔J.F. Bonaparte, 1986, "Les dinosaures (Carnosaures, Allosauridés, Sauropodes, Cétosauridés) du Jurassique Moyen de Cerro Cóndor (Chubut, Argentina)", ''Annales de Paléontologie (Vert.-Invert.)'' 72(3): 325-386〕 The type species, the only known, is ''Lapparentosaurus madagascariensis''. The generic name honours Albert-Félix de Lapparent. The holotype assigned by Bonaparte, MAA 91-92, consists of two neural arches. Much more abundant material has been referred, from at least three but perhaps as much as ten individuals from different growth stages. This includes vertebrae and limb elements but no skulls. The species is still lacking a good description and diagnosis. It should not be confused with ?''Bothriospondylus madagascariensis'', a distinct taxon. Age determination studies performed using growth ring counts suggest that this sauropod took 31-45 years to reach sexual maturity〔de Ricqlès, 1983, "Cyclical growth in the long bones of a sauropod dinosaur", ''Acta Palaeontologia Polonica'' 28: 225-232〕 and was relatively fast-growing given the presence of a large amount of fibrolamellar bone.〔Rimblot-Baly, F., A. de Ricqlès, & L. Zylberberg, 1995, "Analyse paléohistologique d'une série de croissance partielle chez ''Lapparentosaurus madagascariensis'' (Jurassique Moyen): essai sur la dynamique de croissance d'un dinosaure sauropode", ''Annales de Paléontologie'' 81: 49–86〕 ==Notes== 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「Lapparentosaurus」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.