Figure 40 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840

Figure 40 - Posterior end of the skull of Heterodontosaurus tucki from from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Posterior portion of a juvenile skull (AMNH 24000). Stereopair (A) and line drawing (B) in right lateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix; pink tone indicates wear facets. Scale bars equal 1 cm in A and B. Abbreviations: aa articular surface for angular aqj articular surface for quadratojugal asaf  anterior surangular foramen d dentary d7, 11 dentary tooth 7, 11 j jugal jfl jugal flange l left m maxilla m8, 11  maxillary tooth 8, 11 psaf posterior surangular foramen q quadrate qj quadratojugal r right sa surangular wf wear facet.