Fig. 6

Microphotographs of phytoliths identified in the samples. A acicular hair; B short trapeziform; C scalloped form woody dicotyledon; D rondel; E transport tissue silica skeleton; F elongate trapeziform; G scalloped; H bilobate; I–K bulliforms showing good preservation conditions (I), chemical dissolution J and mechanical breaking K due to taphonomic processes; L saddle; (M) globular. Scale bar 50 µm (applies to all microphotographs)