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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 Neotrigonia margaritacea ： ウィキペディア英語版 Neotrigonia margaritacea ''Neotrigonia margaritacea'', common name the pearly brooch-shell, is a species of saltwater clam, a marine bivalve mollusc in the family Trigoniidae. This species is known from sandy substrates in shallow seas in southeastern and southwestern Australia. This species was the first member of the family to be discovered alive; previous to its discovery, trigoniids were only known from fossils. ==History== Jean-Baptiste Lamarck first described ''Neotrigonia margaritacea'' (under the name ''Trigonia margaritacea'') in 1804. It was what is now known as a "living fossil", being the first known living member of the Trigoniidae, a family of bivalve mollusks that was well-known from fossils, but that had been thought to have become extinct not long after the end of the Mesozoic Era. In 1912, Cossman renamed the genus ''Neotrigonia'', and this genus now contains several other species discovered subsequently, all from the waters around Australia and Tasmania.〔 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「Neotrigonia margaritacea」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.