Fig. 1

Methodology a BSP 1968 I 75 partial cranium of Placodus gigas showing the enlarged palatine and maxillary teeth in palatal view; b left palatine and maxillary teeth in occlusal view. The dashed lines show the worn surfaces. The photosimulations of the microwear analysis were taken from the area marked with blue square (distal palatine teeth); c two-dimensional photosimulation of the worn surface in occlusal view. The blue arrows show small and large pits, while the yellow arrows indicate scratches. d Three-dimensional worn dental surface. The area is 637 × 468 μm (= 20 × magnification) in both cases