They form the lateral boundaries of the anterior nares, and each sends dorsalwards a process which meets the postfrontal.
In an articulated skull the trans-palatine articulates with the ventrolateral articulating surface of the postfrontal.
The postfrontal forms also part of the outer boundary of the supratemporal fossa.
The postfrontal is generally well developed, while the jugals and quadratojugals are absent.
The postfrontal extends laterally and ventrally and has a terminal extension that projects anterolaterally.