Fig. 4: Selected microbotanical materials extracted from the dental calculus of MTNW.

a Starch and microcharcoal entrapped within calcified matrix, M2. Starch granules: b–d parabolic, M2; e oblong elongate, M2; f oblong elongate, M3; g, h parabolic, M2; i ovate, M2; j–m parabolic, M2; n quadratic, M2; o polygonal, M2; p orbicular, M3; q polygonal, M3; r orbicular, M2; s quadratic, M2; t polygonal, M2; u orbicular, M2; v polygonal, M1; w orbicular, M3; x orbicular, M2; y orbicular, M2; z polygonal, M2; aa quadratic, M2; ab orbicular, M2; ac polygonal, M2; ad orbicular, M1; ae orbicular, M2; af orbicular, M2; phytoliths: ag–ao globular tuberculate to echinate, M1; microcharcoal: ap–as M2.