zygomatic

Position of the supraorbital notch in relation to the posterior notch of the zygomatic plate.

The zygomatic process is apt to be prominent, in keeping with the heaviness of the upper jaw.

The anterior (zygomatic) process of the squamosal is greatly reduced (only about one-third the length of the posterior process).

There is no overlap in length of body, basilar length, zygomatic breadth, mastoidal breadth or length of nasals.

The breadth across the zygomatic arch is 2·38 against 3·64 of A. collaris.