Bioerosions produced by the osteophagous diet of animals that fed on dinosaur bones are very scarce in the European fossil record. Herein we present bioerosion on hadrosaurid remains from the Maastrichtian Tremp Formation of the Pyrenean Basin, which is only the second such case recorded from the Iberian-Occitan Plate besides a sauropod from the Jurassic-Cretaceous of Valencia. The hadrosaurid fossil record is particularly rich in the Blasi sites of the Tremp Formation located in the municipality of Arén (Huesca, Spain). In this article, bones referred to the hadrosaurid Arenysaurus ardevoli from the Blasi-3 site are analysed to shed light on the palaeoenvironment and on the presence of a palaeoecological interaction between the hadrosaurid carcase and osteophagous tracemakers. Bioerosions recorded on the bones comprise tunnels, roundish holes, and straight notches, similar to the traces attributed to necrophagous insects (cf. Cuniculichnus seilacheri). Here, we record the first instance of the activity of these animals on dinosaur bones in the Upper Cretaceous of the Ibero-Occitan Plate. The results presented lead us to infer that the Arenysaurus bones were possibly transported by a storm or similar event to the Blasi-3 site, where they were exposed to post-mortem biotic interactions (eaten and partially decomposed by dermestid beetles) for a prolonged time period before they were completely buried.

中文翻译：

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马斯特里赫特恐龙 Arenysaurus ardevoli 食骨昆虫的生物侵蚀和古生态学关联

在欧洲化石记录中，以恐龙骨骼为食的动物的食骨性饮食产生的生物侵蚀非常稀少。在这里，我们展示了比利牛斯盆地 Maastrichtian Tremp 组的鸭嘴龙类遗骸的生物侵蚀，这是除了瓦伦西亚侏罗纪-白垩纪的蜥脚类恐龙之外，伊比利亚-奥克板块记录的第二个此类案例。鸭嘴龙类化石记录在位于 Arén 市（西班牙韦斯卡）的 Tremp 组的 Blasi 遗址中特别丰富。在这篇文章中，骨头指的是鸭嘴龙类Arenysaurus ardevoli来自 Blasi-3 站点的分析以阐明古环境以及鸭嘴龙科动物尸体和食骨示踪剂之间存在的古生态相互作用。骨骼上记录的生物侵蚀包括隧道、圆孔和直槽，类似于食尸昆虫的痕迹（参见Cuniculichnus seilacheri）。在这里，我们首次记录了这些动物在伊比利亚-奥克西坦板块上白垩纪恐龙骨骼上的活动。呈现的结果使我们推断出Arenysaurus骨头可能被风暴或类似事件运送到 Blasi-3 地点，在那里它们在被完全掩埋之前长时间暴露于死后的生物相互作用（被皮甲虫吃掉并部分分解）。