Extended Data Fig. 4: Celebochoerus heekereni fossil maxilla fragment from Calio.
The specimen was embedded in coarse sandstone and retrieved in two separate fitting blocks found in the same location (black arrows in c and d). a, Occlusal view of sinistral P4 and M2; b, Occlusal view of sinistral M3 of the same individual retrieved from the opposite block; c-d, Find location of the dated Celebochoerus fossil maxilla (marked by arrows) in square B1U1 approximately 30 cm below the ground surface. The deepest stone artefact (Artefact 6) was excavated from the adjoining square B1U2 to the north and was located ~26 cm below the level of the fossil.
