The left and right Parietal bones.
There are eight major bones that form the cranium. They are:
Ethmoid: Forms the lower eye orbits and ceiling of the nasal cavity.
Frontal: Forms the front of the cranium which includes the forehead, brow ridges, and nasal cavity.
Occipital: Forms the lower rear of the cranium.
Parietal (left and right): Form the superior and lateral portion of the cranium.
Sphenoid: Forms some of the eye orbits and the floor of the cranium.
Temporal (left and right): Forms the sides of the cranium and the external ear.
