The power of the physical fabric of mudstone in creating trace fossil like redoximorphic features, case study from the late Eocene, Sirt Basin

This article presents complex paleo-pedoturbation features, preserved in a massive mudstone stratum belonging to a siliciclastic sequence in the upper Eocene. The outcrop of these turbations presents an intricate network of iron oxide in semi tubular forms. The mudstone to which these structures are restricted is lithologically similar to other mudstone beds, below and above it in the sequence. In contrast, it presents more paleo-pedogenic features.