PCA on taphonomic variables. The colours of the points correspond to the stratigraphic units. The labels correspond to the depths of the samples. The colour polygons correspond to the cluster of the correspondence analysis. The arrows correspond to the variables defining the state of conservation of the macro-remains (NWI: non-sclerified whole intact; NWD: non-sclerified whole degraded; MWI: mixed whole intact; MWD: mixed whole degraded; SWI: sclerified whole intact; SWD: sclerified whole degraded; SFI: sclerified fragmented intact).