(A) Photograph, and (B) annotated digital model in dorsal views. (C) Photograph, and (D) annotated digital model in ventral views. Abbreviations: bo, basioccipital; bo pl, basioccipital plate; bs, basisphenoid; ccvf, cerebral carotid vasculature foramen; cr B, crest B of quadrate; ds, dorsum sellae; IX-XI, foramina for glossopharyngeal, vagus, and accessory nerves (metotic foramen) ; mptf, medial pharyngeal tube foramen; ocn, occipital condyle; oto, otoccipital; pcf, posterior carotid foramen; pcf can, canal of posterior carotid foramen (damaged); pt, pterygoid; pt asp, pterygoid ascending process; ptsnobo, communicating ostium between pharyngotympanic sinus and basioccipital diverticulum; ptsnobs, communicating ostium between pharyngotympanic sinus and basisphenoid diverticulum; q, quadrate; q ptp, quadrate pterygoid process; VI, abducens foramina; XII a, anterior hypoglossal foramen; XII p, posterior hypoglossal foramen.