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| image = Palaeoconchus minor.jpg | image_caption = ''Palaeoconchus minor'' Vinn, 2006 from Late Ordovician of Kõrgessaare, Hiiumaa, Estonia. | regnum = Animalia | phylum = ''incertae sedis'' | classis = Tentaculita† | ordo = Microconchida† | genus = ''Palaeoconchus''† | genus_authority = Vinn, 2006 | subdivision = | subdivision_ranks =species }} ''Palaeoconchus'' is a genus of microconchid tubeworms. Their tubes have pseudopunctae penetrating the tube wall. Tubes lumen is smooth. ''Palaeoconchus'' occurs in the Late Ordovician of Baltica and Avalonia. In the Devonian it had a global distribution. ==References== 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「Palaeoconchus」の詳細全文を読む スポンサード リンク
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