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Figure 7 in Nanotyrannus, a new genus of pygmy tyrannosaur, from the latest Cretaceous of Montana

Bakker, R. T.,; Williams, M.; Currie, P. J.

Figure 7-—Sagittal sections through the posterior parts of the skulls in tyrannosaurs to show the arrangement of the braincase. The internal arrangement of pneumatic spaces is known only for Tyrannosaurus. Arrow shows the ventral apex of the basituber. Tyrannosaurus skull from AMNH 5027 (dermal bones and basipterygoid processes); AMNH 5029 (braincase section) and AMNH 5107 (basitubera). Gorgosaurus skull from USNM 12814 (dermal bones) and ROM 1247 (braincase)

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