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16 results for “Sanajeh”
Figure 8 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 8. Cranial bones of Sanajeh indicus referred specimen GSI/GC/DD4. Photograph (A) and line drawing (B) of partial skull, including braincase, skull roof and posterior portions of right palate and mandible in dorsal view. Hatched lines indicate broken bone surface; parallel double-line pattern indicates matrix; and dashed lines indicate reconstructed portions of incomplete elements. Abbreviations: as ect, articular surface for the ectopterygoid; as pl, articular surface for the palatine; as sq, articular surface for the squamosal; bo, basioccipital; c, coronoid; cb, compound bone; d, dentary; oto, otoccipital; p, parietal; po, postorbital; pr, prootic; pt, pterygoid; so, supraoccipital; sp, splenial; sq, squamosal; st, stapes; sut, supratemporal; t, tooth;?, unidentified bone.
Figure 7 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 7. Palatine of Sanajeh indicus referred specimen GSI/GC/DD4. Photographs and line drawings of right palatine in dorsal (A) and ventromedial (B) views. Hatched lines indicate broken bone surface, and parallel double-line pattern indicates matrix. Abbreviations: as m, articular surface for the maxilla; as pt, articular surface for the pterygoid; ch pr, choanal process; pl1, palatine tooth 1; pl6, palatine tooth 6; pl13, palatine tooth 13; sbofo, suborbital foramen.
Figure 6 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 6. Dentary of Sanajeh indicus holotype GSU/GC/2903. Anterior portion of the right dentary in lateral (A), medial (B), ventral (C) and dorsal (D) views. Abbreviations: bp, basal plate; d, dentary; Mc, Meckelian groove; pl, pleura; sd, subdental shelf; sy, symphyseal facet; t, tooth.
Figure 5 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 5. Mandible of Sanajeh indicus holotype GSU/GC/2903. Photographs and line drawings of right mandible in lateral (A) and medial (B) views. Hatched lines indicate broken bone surface; parallel double-line pattern indicates matrix; and dashed lines indicate reconstructed portions of incomplete elements. Abbreviations: a, angular; al5, alveolus for tooth 5; asfo, anterior surangular foramen; c, coronoid; cb, compound bone; c fa, coronoid facet; d, dentary; d4, dentary tooth 4; d6, dentary tooth 6; d11, dentary tooth 11; Mc, Meckelian groove; mfo, mental foramen; pmfo, posterior mylohyoid foramen; sp, splenial; sp fr, splenial fragment;?, unidentified bone.
Figure 4 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 4. Postfrontal of Sanajeh indicus holotype GSU/GC/2903. Photographs and line drawings of right postfrontal in dorsal (A), ventral (B) and posteromedial (C) views. Hatched lines indicate broken bone surface, and parallel double-line pattern indicates matrix. Abbreviations: as f, articular surface for frontal; as p, articular surface for parietal; orm, orbital margin; vpr, ventral process;?, unidentified bone.
Figure 2 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 2. Sanajeh indicus holotype block GSI/GC/2903. Line drawing of cranial elements preserved in near-anatomical articulation atop a chain of dorsal vertebrae (anteriormost vertebra at left). Hatched lines indicate broken bone surface; orange tone indicates matrix; and dashed lines indicate reconstructed portions of incomplete elements. Abbreviations: bc, braincase; l, left; m, maxilla; md, mandible; pl, palatine; pm, premaxilla; pof, postfrontal; r, right; sm, septomaxilla.
Figure 1 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 1. Sanajeh indicus holotype block GSI/GC/2903. Photograph of cranial elements preserved in near-anatomical articulation atop a chain of dorsal vertebrae (anteriormost vertebra at left).
Figure 9 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 9. Cranial bones of Sanajeh indicus referred specimen GSI/GC/DD4. Photograph (A) and line drawing (B) of partial skull, including braincase, skull roof and posterior portions of right palate and mandible in ventral view. Hatched lines indicate broken bone surface, and parallel double-line pattern indicates matrix. Abbreviations: as bp, articular surface for the basipterygoid process; bo, basioccipital; c, coronoid; cb, compound bone; d, dentary; oto, otoccipital; p, parietal; po, postorbital; pr, prootic; pt, pterygoid; sp, splenial; st, stapes; sut, supratemporal; t, tooth;?, unidentified bone.
Figure 16 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 16. Phylogenetic relationships of Toxicofera. Strict consensus of eight most parsimonious trees (996 303 steps) based on an unweighted total evidence analysis using TNT. Unlabelled nodes have bootstrap values of 100%. Asterisks indicate bootstrap values <70%. Images on the right are dorsal views of the left temporal region of Varanus salƲator (FMNH 35144),
Figure 12 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 12. Compound bone of Sanajeh indicus referred specimen GSI/GC/DD4. Posterior portion of left compound bone in lateral (A), medial (B), dorsal (C) and ventral (D) views. Abbreviations: ar, articular surface for the quadrate; ctfo, foramen for the chorda tympani; psfo, posterior surangular foramen; su cp, surangular portion of the compound bone.
Figure 15 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 15. Cranial bones of Sanajeh indicus referred specimen GSI/GC/DD4. Three-dimensional computed tomographic scan cutaway views along the horizontal (A, B) and transverse (C, D) planes. Arrowheads in B indicate the position of the transverse cutaway views in C, D. Abbreviations: bp, basal plate; oto, otooccipital; p, parietal; pl, pleura; po, postorbital; pr, prootic; pt, pterygoid; sd, subdental shelf; sq, squamosal; sut, supratemporal; t, tooth.
Figure 14 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 14. Palatal bones of Sanajeh indicus referred specimen GSI/GC/DD4 and Lanthanotus borneensis (FMNH 148589). Three-dimensional computed tomographic scan images of right palatine (blue) and pterygoid (yellow) of Sanajeh indicus (A, C, E) and Lanthanotus borneensis (B, D, F) in dorsal (A, B), ventral (C, D) and oblique anterolateral (E, F) views. Arrows point to the broad contact area between the pterygoid and palatine. Anterior is toward the left in A, B and toward the right in C–F. Scale bar represents 10 mm for Sanajeh and 2 mm for Lanthanotus. Abbreviations: as bp, articular surface for the basipterygoid process; as ect, articular surface for the ectopterygoid; as m, articular surface for the maxilla; ch pr, choanal process; q pr, quadrate process; sbo, suborbital foramen; t, tooth.
Figure 10 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 10. Cranial bones of Sanajeh indicus referred specimen GSI/GC/DD4. Photograph (A) and line drawing (B) of partial skull, including braincase, skull roof and posterior portions of right palate and mandible in left lateral view. Hatched lines indicate broken bone surface; parallel double-line stippling indicates matrix; and dashed lines indicate reconstructed portions of incomplete elements. Abbreviations: amfo, anterior mylohyoid foramen; as bp, articular surface for the basipterygoid process; as pl, articular surface for the palatine; as sut, articular surface for the supratemporal; bo, basioccipital; c, coronoid; cb, compound bone; d, dentary; oto, otoccipital; p, parietal; p cr, parietal crest; po, postorbital; pr, prootic; pt, pterygoid; sp, splenial; sq, squamosal; st, stapes; sut, supratemporal; VII, opening for seventh cranial nerve;?, unidentified bone.
Figure 11 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 11. Cranial bones of Sanajeh indicus referred specimen GSI/GC/DD4. Photograph (A) and line drawing (B) of partial skull, including braincase, skull roof and posterior portions of right palate and mandible in anterior view. Hatched lines indicate broken bone surface, and parallel double-line pattern indicates matrix. Abbreviations: as pl, articular surface for the palatine; c, coronoid; cb, compound bone; d, dentary; oto, otoccipital; p, parietal; p cr, parietal crest; po, postorbital; pr, prootic; pt, pterygoid; sp, splenial; sq, squamosal; st, stapes; sut, supratemporal; t, tooth;?, unidentified bone.
Figure 13 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 13. Temporal arch bones of Sanajeh indicus referred specimen GSI/GC/DD4. Three-dimensional computed tomographic scan reconstruction of the left postorbital (blue) and squamosal (pink) in lateral (A), medial (B), dorsal (C) and ventral (D) views. Abbreviations: as j, articular surface for the jugal; as pof, articular surface for the postfrontal.
Figure 3 in The skull of Sanajeh indicus, a Cretaceous snake with an upper temporal bar, and the origin of ophidian wide-gaped feeding
Figure 3. Premaxilla and maxilla of Sanajeh indicus holotype GSU/GC/2903. Photographs and line drawings of right premaxilla in anterodorsal (A) and posterior (B) views and the right maxilla in lateral view (C). Hatched lines indicate broken bone surface; parallel double-line pattern indicates matrix; and dashed lines indicate reconstructed portions of incomplete elements. Abbreviations: fo, foramen; fos, fossa; mp, maxillary process; np, nasal process; pm3, premaxillary tooth 3; pm4, premaxillary tooth 4; prf, prefrontal; t, tooth.
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