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Oldest record of wood-boring bivalves

机译:木材枯萎的双壳类动物的最古老记录

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摘要

Borings occurring in fossil driftwood are described from the basal Upper Pliensbachian (Margaritatus Zone, Stokesi Subzone) of the northern foreland of the Harz Mountains (Northwestern Germany, Lower Saxony). They belong to the ichnotaxon Teredolites LEYMERIE, 1842 (T longissimus KELLY & BROMLEY, 1984) and represent the hitherto worldwide stratigraphically oldest record of wood-borings produced by bivalves. A possible relationship between the appearance of wood-boring bivalves and the extinction of pseudoplanktic crinoids attached to driftwood is discussed, but seems unlikely.
机译:在哈兹山脉北部前陆(德国西北部,下萨克森州)的基底上普林斯巴赫盆地(玛格丽塔图斯区,斯托克西子带)的基底上描述了在化石浮木中发生的钻孔。它们属于鱼类分类生物Teredolites LEYMERIE,1842年(T longissimus KELLY&BROMLEY,1984年),代表了迄今为止双壳类动物在世界上地层上最古老的钻探记录。讨论了无聊的双壳类动物的出现与浮木附着的拟浮游性海百合消灭之间的可能关系,但似乎不太可能。

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