Fig. 8 in Morphology of the Braincase in the Cretaceous Hybodont Shark Tribodus limae (Chondrichthyes: Elasmobranchii), Based on CT Scanning

Fig. 8. Transverse CT scan slices through the Tribodus limae braincase. Otic region. A, slice 257, at the level of the hypophysis and facial nerve; B, slice 270, showing the pituitary vein canal and the anterior ramus of the octaval nerve; C, slice 285, showing the hypophyseal duct and internal carotids; D, slice 290, showing the posterior ramus of the octaval nerve and the exit of the orbital arteries from the braincase; E, slice 298, at the level of the hypophyseal foramen; F, slice 303, showing the exit of the efferent hyoidean arteries from the braincase; G, slice 307, showing the canals for the lateral dorsal aortae converging to form a single chamber medial to the efferent hyoidean foramina; H, slice 313, showing the lateral dorsal aortae diverging posteriorly. No scale.