Fig. 33. A, X in The Braincase In Paleozoic Symmoriiform And Cladoselachian Sharks

Fig. 33. A, X-ray of the head in a Pennsylvanian symmoriiform (possibly the same taxon represented by the ''Cobelodus'' braincase), from the Fayetteville Shale of Arkansas, OUZC 5300. B, same with orbit, palatoquadrate, and Meckel's cartilage outlined in white. Anterior to right.