Annihilation is impossible if anteriorly it was something real.
Anteriorly it does not form part of the margin of the anteorbital notch.
In this animal there are only two gut-diverticula, which are situated most anteriorly.
It unites dorsally with the exoccipitals and anteriorly with the basisphenoid.
Dorsally it is fixed to the squamosal and anteriorly to the quadratojugal.