Fig. 1 in Dental microwear of a Late Triassic dinosauriform, Silesaurus opolensis

Fig. 1. Microwear on the wear facet of the tooth from the left maxilla (ZPAL Ab III/1218) Silesaurus opolensis Dzik, 2003 from the Upper Triassic; Krasiejów, Poland. A. Lingual view of left maxilla; the tooth in the dashed-lined box preserves microwear features on its wear facet. B. SEM image of the mold of the tooth; the wear facet at the crown apex (dashed-lined rectangle) is magnified. C. SEM image of the impression of the entire wear facet. SEM images taken at 300× magnification were combined to compose this image. Note that the disto-labial region enclosed by a dashed-lined rectangle is more densely scratched than the rest of the wear facet. D. Rose diagram of scratch orientations of the whole wear facet. An open arrow indicates the orientation of the mean vector of the scratches (n = 176). E. Rose diagram of scratch orientations of the disto-labial region, the area enclosed by the dashed-lined rectangle in C. An open arrow indicates the orientation of the mean vector of the scratches (n = 73). The diagram shows that scratches are more aligned in this area than in the wear facet as a whole.