These dilution processes generated big rooms in the cave and a residual clay deposit called terra rosa, which represents the lower cave deposits. Once the cave was opened to the outside it became filled with sediments supplied by rain and gravity into the cave.
Hyenas used this cave, and they brought in the majority of the bones in the cave when they fed their young. Examples of the hyena activity are the abundant coprolites, hyena teeth marks in the bones and the presence of bones from marine mammals indicating that the seashore was close to the cave and that hyenas transported it. Sometime before 0.8 bc, when the cave was completely full of sediments and bones, the water circulation permitted the formation of a layer of calcite in those areas above the sediments and bones and manganese nodules in the sediments.