Figure 10 in Cranial osteology of Exostinus serratus (Squamata: Anguimorpha), fossil sister taxon to the enigmatic clade Xenosaurus

Figure 10. Frontals of Exostinus serratus. A, anterior tip of frontal, USNM v16565, dorsal view (anterior to the left). B, anterior tip of frontal, USNM v16565, ventral view (anterior to the left). C, mid-portion of frontal, AMNH 1608, dorsal view (anterior to the left). D, mid-portion of frontal, AMNH 1608, ventral view (anterior to the right). E, mid-portion of frontal, AMNH 1608, right lateral view (anterior to the right). F, posterior right portion of frontal, USNM v16565, dorsal view (anterior to the left). G, posterior right portion of frontal, USNM v16565, ventral view (anterior to the left). Abbreviations: FRab, anterior bifurcation; FRcc, crista cranii; FRfnt, foramen near tip; FRfppff, foramen posterior to prefrontal facet; FRls, lateral spine; FRms, median spine; FRnaf, nasal facet; FRpaa, parietal articulation; FRpat, parietal tab; FRpoff, postfrontal facet; FRpff, prefrontal facet; FRpfs, partially fused suture; FRprff, prefrontal facet.