Figure 96 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 96 - Jaw adductor musculature in Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Flesh head sculpting over a cast of an adult skull (SAM-PK-K1332) showing surface tissues (anterior half) and select jaw muscles (posterior half). Abbreviations: amep adductor mandibulae externus profundus ames adductor mandibulae externus superficialis amev adductor mandibulae externus ventralis dm depressor mandibulae.