Figure 39 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 39 - Snout end of Heterodontosaurus tucki from from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Close-up view of the anterior end of a juvenile skull (SAM-PK-K10487). Stereopair (A) and line drawing (B) in left lateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 5 mm in A and B. Abbreviations: apd articular surface for the predentary apmf anterior premaxillary foramen d dentary d1 dentary tooth 1 fo, foramen gr groove m maxilla mt maxillary teeth nf narial fossa pd predentary pm premaxilla.