Cranial Ontogeny in Stegoceras validum (Dinosauria: Pachycephalosauria): A Quantitative Model of Pachycephalosaur Dome Growth and Variation
Figure 7
High-resolution CT images of AMNH 5450.
A, dorsal view (left) and frontal section (right); B, lateral view (left) and sagittal section (right); C, anterior view (left) and transverse section through the frontal (right). The histological zones of Goodwin and Horner [37] are denoted. The arrow identifies an artifact likely produced by mineralized collagen fibres present across and along the interfrontal suture. Abbreviations: f, frontal; f-f, inter-frontal suture; f-p, frontoparietal suture; p, parietal; po, postorbital; pso, posterior supraorbital; sq, squamosal; Z-1 to Z-3, histological Zones I to III.