FIGURE 34 in The cranial anatomy of Tenontosaurus tilletti Ostrom, 1970 (Dinosauria, Ornithopoda)

FIGURE 34. Anterior view of the virtual braincase of OMNH 58340. The supraoccipital is indicated by the pink that shows through the foramina for CN I–III. The smooth area across the front of the parasphenoid and the left basipterygoid process, as well as the regular curvature of the outer edge of the right laterosphenoid, prootic, and opisthotic (to the left), are artifacts of CT scanning and represent the limits of the data set. Note the irregular anterior surface of the parietal, showing the interdigitate nature of the suture of that element with the frontals. Black lines are used to denote particular features. Anterior is out of the page and ventral is down. Abbreviations: bt - basal tubera; bpt - basipterygoid process; ct - crista terminalis; eV - excavation for trigeminal nerve (CN V); hf - hypophysial fossa; pp - preotic pendant; st - sella turcica; vt - ventral tubercle of the orbitosphenoid.