The squamosals form the posterior outer margin of the orbits and are frequently continued into two lateral downward processes across the temporal fossa.
The squamosals form part of the cranial wall, being firmly wedged in between the quadrate, prootic and occipital bones.
The quadrates are directly attached to the skull, the squamosals being absent.
Pterygoids connected with the quadrates which are carried by the squamosals, and these are loosely attached to the skull.
The squamosals are reduced to pad-like vestiges.
The short squamosals are very loosely attached to the skull.