Skip to main content
. 2017 Apr 25;5:e3225. doi: 10.7717/peerj.3225

Figure 5. Endocast morphology.

Figure 5

(A–C) endocast of Pelgaosaurus typus and (D–F) endocast of Gavialis gangeticus. (A–D), dorsal view; (B–E), lateral view; (C–F), ventral view. Abbreviations: BA, basilar artery; CBL, cerebellum; CER, cerebrum; DLS, dorsal branch of longitudinal sinus; ICa, internal carotid; MO, medulla oblongata; OA, orbital artery; OT, olfactory tract and bulb; PIT, pituitary; II, optic nerve region; III, oculomotor nerve region; V, trigeminal nerve region; VII, facial nerve region; VIII, vestibulocochlear nerve; IX–XI, glossopharyngeal, vagus, and accessory nerve region; XII, hypoglossal nerve region. For visualization, the endocast of Gavialis has been scaled to the same anteroposterior length as Pelagosaurus. Scale bars equal 1 cm.