Marine macrobenthic tracemaker communities are controlled by limiting parameters (e.g., oxygen, organic matter availability and hydrodynamic energy, among others) which are determined by ocean/atmosphere dynamics affecting the sea bottom. Over the last few years, detailed ichnological studies have provided information about trace fossils content of contourites and the palaeoenvironmental conditions during deposition. However, there are still some open questions regarding ichnology in contourites, such as how the variation in the intensity of bottom currents could affect the macrobenthic community. Here, we present a trace fossils analysis, combining high-resolution images and CT data processing, of five gravity cores retrieved in the Galicia Interior Basin (GIB) from the NW Iberian margin. The ichnological record from contourites and other deep-sea deposits (i.e., pelagic, hemipelagic, turbiditic and ice rafted detritus layers) in the GIB over the last 60 ky is assessed. A trace fossil assemblage composed of 14 ichnotaxa occurs, mainly belonging to Zoophycos ichnofacies. Seven ichnofabrics were defined based on ichnological features. The distribution of these ichnofabrics is linked to depositional facies. In the contouritic intervals, ichnofabric alternations between Thalassinoides ichnofabric and Palaeophycus ichnofabric reveal changes in sedimentation rate, nutrient availability and substrate consistency. These variations in the ichnological content suggests intermittent deposition during contourite sedimentation in contrast with the continuous process traditionally considered in contourite facies models.

海洋大型底栖动物示踪者群落受到限制参数（例如，氧气，有机质可利用性和水动力能等）的控制，这些参数由影响海底的海洋/大气动力学确定。在过去的几年中，详细的人类学研究提供了有关轮廓石中微量化石含量和沉积过程中古环境条件的信息。但是，对于轮廓岩中的鱼类学，仍然存在一些悬而未决的问题，例如底流强度的变化如何影响大型底栖动物群落。在这里，我们对加利西亚内陆盆地（GIB）从西北伊比利亚边缘获取的五个重力岩心进行了化石分析，结合了高分辨率图像和CT数据处理。评估了过去60 ky期间GIB中来自轮廓岩和其他深海沉积物（即中上层，半中层，湍流层和冰层碎屑层）的岩石学记录。出现了由14个鱼鳞生物组成的微量化石组合，主要属于Zoophycos ichnofacies。根据鱼类学特征定义了七个鱼类织物。这些鱼鳞织物的分布与沉积相有关。在contouritic间隔之间交替遗迹组构Thalassinoides遗迹组构和Palaeophycus遗迹组构揭示沉降速率，营养物可用性和基板一致性的变化。岩石形态学含量的这些变化表明，与传统在轮廓岩相模型中考虑的连续过程相反，在轮廓岩沉积过程中出现了间歇性沉积。