(a) Sedimentary log of the Asperillo Cliff in the framework of the units distinguished by Zazo et al.22. The right border of the sedimentary bodies in the log indicates the relative changes of the average grain-size. The colors of the bodies represent the approximate real color of the sediments. At the right of the column, pictures illustrate the aspect of some of the sedimentary bodies. (b) Detailed view of the MTS with several Artiodactyla tracks. (c) Detail of palaeosol Ps2 showing concentric structures and transitions of several colors related to root activity. (d) Ferruginized microbial mat overgrown and filled wide polygonal cracks. e. External halite moulds on the ferruginized microbial mat.