Figure 11—Lateral, dorsal and ventral outlines of the skulls of tyrannosaurs drawn to the same length, except for Alioramus. Deinonychid drawn to the same height as Alioramus, Nanotyrannus and G. stembergi. Jurassic theropods — allosaurs and ceratosaur — drawn to a constant skull depth. The tarbosaur skull is labeled to show the features that distinguish an advanced tyrannosaur from a Jurassic allosaur.Published as part of Bakker, R. T., Williams, M. & Currie, P. J., 1988, Nanotyrannus, a new genus of pygmy tyrannosaur, from the latest Cretaceous of Montana, pp. 1-30 in Hunteria 1 on page 19, DOI: 10.5281/zenodo.103752