FIGURE 17. Prefrontal-nasal joint (DGPC1). 1. left nasal and prefrontal in articulation showing the combined maxillary facet. 2. lateral process of the prefrontal in lateral view. 3. schematic cross-sections across the nasal-prefrontal-maxillary facial process complex. Numbers correspond to the position of the cross-sections. Blue = nasal, orange = prefrontal, gold = maxilla. Scale bar equals 5 mm.