FIGURE 64. Squamosal-jugal-quadratojugal joints. 1. lateral view of the left posterior skull of a juvenile (LDUCZ x1176), with the jugal and postorbital both removed. An anterior view of the squamosal anterior process is also shown. 2. adult left quadrate and quadratojugal (DGPC1) in lateral view. 3. anterior view of the quadratojugal and squamosal facet in YPM 11419. 4. anterior view of the quadratojugal and squamosal facet in YPM 11420 (D). 5. Lateral view of the quadratojugal and squamosal facets for the posterior process of the jugal in YPM 11420. Scale bar equals 5 mm.