Figure 38 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 38 - Snout of the heterodontosaurid Heterodontosaurus tucki from from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Anterior one-half of a juvenile skull (SAM-PK-K10487). Stereopair (A) and line drawing (B) in anterolateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 1 cm in A and B. Abbreviations: apd articular surface for predentary apmf anterior premaxillary foramen d dentary d1 dentary tooth 1 f frontal fo foramen j jugal l lacrimal m maxilla mt maxillary teeth n nasal nd nasal depression nf narial fossa pap  palpebral pd predentary pm premaxilla po postorbital prf prefrontal.