Objectives: Our aim is to study the prevalence of Pterygospinous bar and analyzemorphometrically the homonyms foramen in a collection of existing skulls and discuss their clinical implications. Methods: 90 dried adult human skulls were used for the study. The base of the skull was examined both macroscopically and radiologically for the presence of abnormal osseous structures extending from the lateral pterygoid plate. Average diameter of the Civinini__ampersandsignrsquo;s foramen, width of the lateral pterygoid plate, width of the extending bar from the pterygospinous process and sphenoid spine were measured using the vernier caliper. Results: Out of 90 skulls reviewed, only 5 skulls showed the presence of complete pterygospinous bar with enclosed Civinini__ampersandsignrsquo;s foramen, in which 2 skulls showed the multiple Civinini__ampersandsignrsquo;s foramen. 58 skulls showed the presence of incomplete pterygospinous bar. Conclusion: It is obvious from the results that the incomplete pterygospinous bar is more prevalent, which may lead to altered course of the structures passing through foramen ovale and foramen spinosum. Some of the structures may also be entrapped in the enclosed Civnini__ampersandsignrsquo;s foramen there by resulting in neural and vascular complications. Hence, the vivid knowledge of such presence is highly beneficial to anaesthetists, dental and maxillo __ampersandsignndash; facial surgeons in day to day clinical practice.