Figure 93 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 93 - Relative position of the lower jaw in Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Position of the lower jaw during occlusion (A) and moderate gape (B) as seen in left lateral view of a cast of the cranium and lower jaws of adult specimen SAM-PK-K1332. Scale bar equals 2 cm.