Figure 4 in Cranial osteology of Exostinus serratus (Squamata: Anguimorpha), fossil sister taxon to the enigmatic clade Xenosaurus

Figure 4. Left maxilla of Exostinus serratus, USNM v16565. A, lateral view (anterior to the left). B, medial view (anterior to the right). C, anterior view. Abbreviations: MXaf, alveolar foramen; MXcc, canthal crest; MXcl, crista lateralis; MXct, crista transversalis; MXdaf, dorsal accessory foramen; MXfbfp, foramen at base of facial process; MXfjt, foramen of jugal trough; MXfp, facial process; MXil, inflection before lacrimal facet; MXioc, infraorbital canal; MXlaf, lacrimal facet; MXlic, lamina intercristalis; MXlpmp, lateral premaxillary process; MXlr, lacrimal recess; MXmpmp, medial premaxillary process; MXnaf, nasal facet; MXnm, narial margin; MXoe, oval eminence; MXpfa, prefrontal articulation; MXpff, prefrontal facet; MXsdt, supradental thickening; MXtro, trough for jugal; MXut, upturned tab; MXvof, vomerine facet.