Figure 31 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 31 - Skull of Abrictosaurus consors from the Lower Jurassic Upper Elliot Formation of South Africa. Stereopair (A) and line drawing (B) of skull in left lateral view (NHMUK RU B54). Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 2 cm. Abbreviations: a angular adf anterior dentary foramen aj articular scar for the jugal antfo antorbital fossa apmf anterior premaxillary foramen be buccal emargination d dentary d1, d14 dentary tooth 1, 14 imf internal mandibular fenestra j jugal l lacrimal or left m maxilla Mc Meckel's canal mph manual phalanges pap palpebral pd predentary pm premaxilla pm1, 3 premaxillary tooth 1, 3 po postorbital pra  prearticular q quadrate qj quadratojugal r right sa surangular scr scleral ring sp splenial un ungual.