Background: The knowledge of the ossified ligaments in the base of the skull is of utmost important for anatomical, clinical and anthropological correlations. One such ligament extending from the lateral pterygoid plate to the under surface of greater wing of sphenoid is named as Pterygoalar ligament and is named as Pterygoalar bar after its partial or complete ossification. This Pterygoalar bar is of great significance as it obscure the view of foramen ovale to approach it for anaesthetic , therapeutic purpose either suprazygomatic or infrazygomatic via. Also its enclosed foramen crotaphitico buccinatorius which is comparatively smaller than any other foramen may compress the structures passing through it, probably the structures emerging out of foramen ovale may take up a route via this foramen and get entrapped, which may lead to either neurovascular compression disorder.