File:Ocepeia daouiensis basicranium.png

English: Ocepeia daouiensis, Selandian, Phosphate level IIa of Sidi Chennane, Ouled Abdoun Basin, Morocco. Skull MNHN.F PM45, detail of the basicranium in ventral view. A. Stereophotographic ventral view; B. Annotated ventral view. Scale bar: 10 mm. Abbreviations: co can, cochleae canaliculus = aquaeductus cochleae; ci, crista interfenestralis; ctp, caudal tympanic process; eam, external auditory meatus; ec, eustachian canal eoc, exoccipital eptp, ectopterygoid process er, epitympanic recess; fc, fenestra cochleae (f. rotunda); fo, foramen ovale; fr, foramen rotundum frs, foramen for superior ramus of stapedial artery; fm, foramen magnum; fsa, foramen for ramus superior artery fv, fenestra vestibuli (f. ovalis); gf, glenoid fossa; hf, hypoglossal foramen; jf, jugular foramen ( = flp: foramen lacerus posterius, nerve IX); lctpp, lateral section of caudal tympanic process of petrosal; oc, occipital condyle; mas, pars mastoidea me, mastoid exposure; mp, mastoid process pcan, pars canalicularis pgf, postglenoid foramen; pgp, postglenoid process; pr, promontorium; pta sq: posttympanic apophysis of the squamosal; ppa: paroccipital apophysis: rtpp, rostral tympanic process of petrosal; sff, secondary facial foramen; sica, sulcus for internal carotid artery; smf, stylomastoid foramen (facial nerve); sq/pe, suture between squamosal and petrosal; th, tympanohyal; tt, tegmen tympani; ttf, tensor tympani fossa; vcf, ventral condylar fossa.