New Information on the Cranial Anatomy of Acrocanthosaurus atokensis and Its Implications for the Phylogeny of Allosauroidea (Dinosauria: Theropoda)
Figure 16
Frontals, parietals, and braincase of Acrocanthosaurus atokensis (NCSM 14345) in ventral view.
Reconstructed from CT scan data. bo, basioccipital; bpt, basipterygoid process; bsr, basisphenoid recess; bt, basal tubera; F, frontal; LS, laterosphenoid; OS, orbitosphenoid; P, parietal; popr; paroccipital processes; sptf, supratemporal fossa.