What is the purpose of squamous part of temporal bone?

Gross anatomy

The squamous temporal bone's outer convex surface provides attachment to the temporalis muscle and forms a boundary of the temporal fossa. A curved line, the supramastoid crest (or temporal line), runs posterosuperiorly across its posterior part and provides attachment to the temporalis fascia.

Where is the squamous part of frontal bone?

The squamous part of the frontal bone is the largest part of the frontal bone which forms the area of the forehead. The squamous part of the frontal bone houses the frontal sinuses, which are separated by a septum and are located above the orbits.