Figure 31 in Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria)

Figure 31. Cranial crest shape variation in Oviraptoridae. Illustrations of skulls in left lateral view, with roughly triangular crests (A) emphasizing the anterior midline process of the nasal (AMP), and rounded, domed crests (B) emphasizing the lateral descending wings of the nasal (LDW). Regions of the nasal (blue) are divided by a dashed line, showing variation in which part contributes to the cranial crest. Premaxilla is highlighted in orange for clarity, dotted lines show reconstructed regions. Not to scale.