Serpulid polychaetes are described as common encrusting organisms inhabiting various substrates, but very few studies deal with tube-dwelling polychaetes as substrates for encrusters and borers. Here we focus on Pyrgopolon (Pyrgopolon) deforme, a serpulid species common in the Cenomanian of Le Mans region which acted as small solid benthic islands for colonization by invertebrates on a soft sandy/marly bottom. A relatively rich assemblage of 88 individuals was studied surficially, 15 specimens were imaged with CT, and five specimens were prepared as vacuum epoxy casts. Borings found in the tubes show relatively low diversity; nevertheless, several different, recurring shapes were recognized. Borings of the ichnogenus Rogerella are among the best preserved. The examined tubes represent the second known case of interaction between boring barnacles (Rogerella tracemakers) and serpulid worms. Short shafts perpendicular to tube surfaces are attributable to Trypanites isp. Longer, irregularly meandering tunnels resemble another form of Trypanites isp., but usually display more than one opening, suggesting Maeandropolydora. Another boring is a drop-shaped chamber with a relatively large aperture and several narrower side openings. They can be preliminarily assigned to unicamerate entobians. Among sclerozoans, encrusting oysters and cheilostome and cyclostome bryozoan colonies are the most abundant groups. Other encrusters such as serpulid and sabellid worms and foraminifers are less common, infesting fewer than 10% of tubes. Due to the high density of infestation, random distribution of boreholes and lack of signs of repair of the penetrated tube walls by the host organism, post-mortem infestation of Pyrgopolon (P.) deforme is suggested.

Serpulid 多毛类被描述为栖息在各种基质中的常见包壳生物，但很少有研究将管状多毛类作为包壳和蛀虫的基质。在这里，我们专注于Pyrgopolon ( Pyrgopolon )变形虫，这是一种常见于勒芒地区 Cenomanian 的蛇类物种，它充当小型固体底栖岛屿，供无脊椎动物在柔软的沙质/泥灰质底部进行殖民。对 88 个个体的相对丰富的组合进行了表面研究，15 个标本用 CT 成像，5 个标本制备为真空环氧树脂铸件。在管中发现的钻孔显示出相对较低的多样性；尽管如此，还是识别出几种不同的、重复出现的形状。ichnogenus Rogerella 的钻孔是保存最完好的。被检查的管子代表了无聊的藤壶（Rogerella tracemakers）和 serpulid 蠕虫之间相互作用的第二个已知案例。垂直于管表面的短轴可归因于锥虫isp。更长、不规则蜿蜒的隧道类似于另一种形式的锥虫，但通常显示多个开口，表明Maeandropolydora. 另一种钻孔是具有较大孔径和几个较窄侧开口的水滴形腔室。它们可以被初步分配给单学派的entobians。在硬骨动物中，有壳的牡蛎和唇口虫和环口虫的苔藓虫群落是最丰富的群体。其他包壳虫如 serpulid 和 sabellid 蠕虫以及有孔虫不太常见，侵染管的不到 10%。由于侵扰的高密度，钻孔的随机分布，缺乏通过的宿主生物体，验尸侵染穿透管壁的修复的迹象Pyrgopolon（P。）deforme被建议。