FIGURE 30 in A reappraisal of the cranial and mandibular osteology of the spinosaurid Irritator challengeri (Dinosauria: Theropoda)

FIGURE 30. Close-up photograph of the left cheek region of Irritator challengeri (SMNS 58022). Note that bones are labelled in bold, and other anatomical structures in regular font. Abbreviations: j, jugal; l, lacrimal; l.ep, left ectopterygoid; ecpl, ectopterygoid lamina of the left pterygoid; l.bpp, left basipterygoid process of the parabasisphenoid; l.pa, left palatine; l.pt, left pterygoid; l.sur, left surangular; l.sq, left squamosal; m, maxilla; ptw, pterygoid wing of left quadrate; qw, quadrate wing of left pterygoid; r.pa, right palatine; r.sur, right surangular; 10, tenth preserved tooth position of the left maxilla.