On which bone does Mandibular Fossa occurs?

Mandibular Fossa occurs on temporal bone.

Explanation:

Mandibular fossa also known as glenoid fossa, the depression of temporal bones. Mandibular fossa articulates with the mandible and interacts with mandibular condyle. Glaserian fissure divides the mandibular fossa into two parts.

Articular tubercle bounds the mandibular fossa anteriorly. The mandibular fossa is bounded posteriorly by the temporal bone. Mandibular fossa development may get arrested due to the separation of mandibular condyle.