Image: Dilophosaurus assigned braincase

Description: Figure 56. Dilophosaurus wetherilli referred specimen (TMM 47006-1): (1–6) articulated braincase (CT volume renderings with matrix digitally removed) in (1) right lateral, (2, 7) left lateral, (3) dorsal, (4) ventral, (5) anterior, and (6) posterior view. The left side of (7) has been removed to show the medial surface of right prootic and otooccipital. Arrows point in anterior direction. ar = auricular recess; bpr = basipterygoid recess; bpt = basipterygoid process; bsr = basisphenoid recess; bt = basal tuber; cat = crista antotica; cg = cultriform groove; ci = crista interfenestralis; cp = cultriform process of the basisphenoid; cpr = crista prootica; ct = crista tuberalis; ctr = caudal tympanic recess; fm = foramen magnum; fo = foramen ovale; fp = fenestra pseudorotunda; icf = internal carotid foramen; l.bpt = left basipterygoid process; l.pop = left paroccipital process of the opisthotic; mcv = foramen for the middle cerebral vein; mp = median process; nc = nuchal crest; oc = occipital condyle; pit = pituitary fossa; prtr = prootic divisin of the rostral tympanic recess; r.bpt = right basipterygoid process; r.pop = right paroccipital process of the opisthotic; scr = subcultriform recess; srtr = subotic division of the rostral tympanic recess; ssc = semicircular canal; ssr = subsellar recess; V = opening for the trigeminal nerve; VI = foramen or canal for the abducens nerve; VII = foramen or canal for the facial nerve; VIII = foramen or canal for the vestibulocochlear nerve; IX = foramen or canal for the glossopharyngeal nerve; X = foramen or canal for the vagus nerve; XII = foramen or canal for the hypoglossal nerve.
Author: Adam D. Marsh and Timothy B. Rowe
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License: CC-BY-SA-3.0
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