Figure 3. Butchering cut-marks on caudal vertebra of Delphinidae (Globicephala cf. Gl. melas).

This bone bears cuts on the lateral margin of the cranial side (A), near one of the transverse processes, where part of the surface had been removed during separation from the anterior vertebra (B). The marks are numerous, short (~2 mm), straight and sub-parallel. Fourteen striations are deep and repeated (C; D: view under the SEM), with perpendicular edges, while one is oblique, testifying to the inclination of the lithic tool during the cutting action. The semi-circular orientation of these striations follows the curvature of the bone, as it was rotated during dismemberment.