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| image = Punctaconchus ampliporus.jpg | image_caption = ''Punctaconchus ampliporus'' Vinn and Taylor, 2007 from the Bathonian, White Limestone Formation, Foss Cross Quarry, Gloucestershire, UK. | regnum = Animalia | phylum = ''incertae sedis'' | classis = Tentaculita† | ordo = Microconchida† | genus = ''Punctaconchus''† | genus_authority = Vinn and Taylor, 2007 | subdivision = | subdivision_ranks =species }} ''Punctaconchus'' is a genus of microconchid tubeworms. Their tubes have large pores (punctae) penetrating the tube wall. Tubes lumen is covered by ripplemark−like transverse ridges. ''Punctaconchus'' occurs in the Middle Jurassic of England and France. ==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「Punctaconchus」の詳細全文を読む スポンサード リンク
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