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307 results for “Ornithischia”
Figure 4 in The record of Torosaurus (Ornithischia: Ceratopsidae) in Canada and its taxonomic implications
Figure 4. Parietal surface texture of Torosaurus cf. T. latus (EM P16.1). A, left side of parietal for context (red bounding boxes indicate details in B–E); B, transversely oriented short-grained texture; C, interpretive overlay of B emphasizing short-grained texture; D, sagittally oriented long-grained texture near presumed parietal fenestra; E, interpretive overlay of D emphasizing long-grained texture.
Fig. 15 in Yamaceratops dorngobiensis, a New Primitive Ceratopsian (Dinosauria: Ornithischia) from the Cretaceous of Mongolia
Fig. 15. Isolated teeth from the referred specimen of Yamaceratops dorngobiensis (IGM 100/1303). A: Larger cheek tooth in nonocclusal view. B: Probable anterior maxillary tooth in labial view. C: Premaxillary tooth in labial view. Abbreviations are listed in appendix 3.
Fig. 12 in Yamaceratops dorngobiensis, a New Primitive Ceratopsian (Dinosauria: Ornithischia) from the Cretaceous of Mongolia
Fig. 12. Isolated predentary (IGM 100/1867) referred to Yamaceratops dorngobiensis in lateral (A) and dorsal (B) views.
FIG. 52 in The Osteology Of Haya Griva (Dinosauria: Ornithischia) From The Late Cretaceous Of Mongolia
FIG. 52. Transverse thin sections of Haya griva femora. A, IGM 100/2020, B, IGM 100/2015, C, IGM 100/3672, and D, IGM 100/1324 under crossed Nicols with full wave plate. White dots indicate growth marks (LAGs and annuli).
FIG. 31. A in The Osteology Of Haya Griva (Dinosauria: Ornithischia) From The Late Cretaceous Of Mongolia
FIG. 31. A, Cervical vertebrae of IGM 100/2015 in right ventrolateral view. B, Atlantal intercentrum of cast of IGM 100/2015 (AMNH FARB 30635) in ventral view. C, Atlantal intercentrum of cast of IGM 100/2015 (AMNH FARB 30635) in lateral view. Abbreviations in appendix 1.
Figure 11 in A redescription of the skull of Euoplocephalus tutus (Archosauria: Ornithischia): a foundation for comparative and systematic studies of ankylosaurian dinosaurs
Figure 11. Schematic illustration of the cranium of Euoplocephalus tutus Lambe (1902) in ventral view (A). Detail of the left side of the occiput in caudoventral oblique view (B), demonstrating the disarticulated position of the left palpebral as viewed through the cranioquadrate passage. TMP 97.132.1. Scale bar, 70 mm. All abbreviations are listed in Appendix 1.
Figure 13 in A redescription of the skull of Euoplocephalus tutus (Archosauria: Ornithischia): a foundation for comparative and systematic studies of ankylosaurian dinosaurs
Figure 13. Occiput of Euoplocephalus tutus Lambe (1902) in occipital view, original and interpretive illustration. TMP 91.127.1. Scale bar, 100 mm. All abbreviations are listed in Appendix 1.
Figure 4 in A redescription of the skull of Euoplocephalus tutus (Archosauria: Ornithischia): a foundation for comparative and systematic studies of ankylosaurian dinosaurs
Figure 4. Schematic illustrations of the cranium of Euoplocephalus tutus Lambe (1902) in oblique rostrodorsolateral (A), oblique caudodorsolateral (B) and oblique caudoventral (C) views. (A) Rostral region, defined by the area in advance of a transverse plane located at the rostral extremity of the orbital cavities (represented by the dashed-square). (B) Temporal region, defined by the area caudal to a transverse plane located at the rostral extremity of the orbital cavities (represented by the dashedsquare). (C) Palatal region, defined by the elements situated along the ventral surface of the cranium, in advance of the basicranium proper, covering the majority of the roof of the oral cavity (represented by the dashed-square) and occipital/basicranial region, defined by the all the elements present in caudal view, including the basicranium proper and associated structures (represented by dashed-oval). Abbreviations in italics (i.e. the basioccipital, basisphenoid, exoccipital, quadrate and supraoccipital) in (C) are components of the occipital/basicranial regionl; all others in (C) are components of the palatal region. Not to scale. All abbreviations are listed in Appendix 1.
Figure 14 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 14. Probactrosaurus and lambeosaurine isolated dentary teeth compared. (A) lingual and (B) distal. PIN 2232/23-2 an isolated, complete replacement crown from the left dentition. (C) lingual), and (D) mesial. Drawing of a 'typical' lambeosaurine hadrosaurid tooth crown, from the right dentition. Abbreviations: 1–4 = equivalent facets for the articulation of adjacent teeth; p = primary ridge; sh = shoulder region on the mesial edge of the crown. Note the degree of curvature of the root in distal aspect; in this respect probactrosaur teeth more closely resemble those seen in more basal iguanodontians and hadrosaurine hadrosaurids (cf. Brachylophosaurus sp. MOR 1071).
Figure 24. Probactrosaurus gobiensis Rozhdestvensky, 1966. Metacarpals. A, PIN 2232 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 24. Probactrosaurus gobiensis Rozhdestvensky, 1966. Metacarpals. A, PIN 2232/3-1. Metacarpal IV of the right manus in ventral view, and B, MC IV in dorsal view; C, PIN 2232/18-5. Metacarpal III of the?left manus in dorsal view. D, PIN 12068. Metacarpal II of the right manus in dorsal view. Abbreviations: l.s = ligament scars.
Figure 16. Dentary crowns. A in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 16. Dentary crowns. A, Altirhinus kurzanovi. Isolated replacement dentary crown; crown hollow, root uncalcified. B, Probactrosaurus gobiensis isolated crown (PIN 2232/23-2) in lingual aspect. C, the same crown as in B, but in mesial aspect and under greater magnification, showing details of the structure of the marginal denticles.
Figure 27. Probactrosaurus. Ilium. A & C, PIN 2232 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 27. Probactrosaurus. Ilium. A & C, PIN 2232/19-1. Left ilium lacking only a small part of the acetabular margin and posterior blade. B, PIN 12017. Left ilium, labelled 'P. alashanicus', rather less complete, missing the distal end of the anterior process and the pubic peduncle. Abbreviations: ac = acetabulum; ap = anterior process; is.p = ischial peduncle; pu.p = pubic peduncle; srs = sutural contact areas for the sacral ribs/sacricostal yoke.
Figure 15. Probactrosaurus gobiensis Rozhdestvensky, 1966 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 15. Probactrosaurus gobiensis Rozhdestvensky, 1966. Dentary teeth in lingual aspect, as stereoscopic pairs. A, an isolated, unworn dentary crown (PIN 2232/23-2). B, part of a dental magazine of 'P. alashanicus' (PIN 2232/42- 1). C, an isolated and partially worn dentary crown (PIN 2232/24-1). Natural size.
Figure 12. Probactrosaurus gobiensis Rozhdestvensky, 1966. PIN 2232 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 12. Probactrosaurus gobiensis Rozhdestvensky, 1966. PIN 2232/42-1. Dentary (attributed to 'P. alashanicus') right, nearly complete, showing part of the dental magazine in-situ and showing the presence of two replacement crowns in a single alveolus and an oblique inclination of the occlusal surface. Abbreviations: al.p = alveolar parapet; b.sh = buccal shelf lateral to the dentition; cp = coronoid process; gr = simple groove marking the position of the foramina leading to the dental lamina; pd.s = sutural surface for the predentary; sa.s = surangular; sym = dentary symphysis.
Figure 6. Probactrosaurus gobiensis Rozhdestvensky, 1966. Jugal PIN 2232 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 6. Probactrosaurus gobiensis Rozhdestvensky, 1966. Jugal PIN 2232/1-1a (left) in lateral (A) and medial (B) view. Abbreviations: ec.s = suture for the ectopterygoid; itf = lower margin of the infratemporal fenestra; mx.s = sutural surface for the jugal process of the maxilla (Figure 5); q-j.s = suture for the quadratojugal.
Figure 9. Probactrosaurus gobiensis Rozhdestvensky, 1966. PIN 2232 in On Asian ornithopods (Dinosauria: Ornithischia). 4. Probactrosaurus Rozhdestvensky, 1966
Figure 9. Probactrosaurus gobiensis Rozhdestvensky, 1966. PIN 2232/2-1. Braincase in left lateral view. Abbreviations: aud = auditory recess (including fenestra vestibuli, exit for cranial nerve [cn] IX and?jugular); bo = basioccipital; bs = basisphenoid; cn = cranial nerves; cn III = probably includes cn VI and cn VII; ex: exoccipital; ls = laterosphenoid; orb = sphenethmoid/orbitosphenoid plate; op = opisthotic; p = parietal; pr = pro-otic; ps = parasphenoid; sq-n = notch for attachment of medial portion of squamosal.
FIGURE 5 in A new ornithopod dinosaur, <i>Transylvanosaurus platycephalus</i> gen. et sp. nov. (Dinosauria: Ornithischia), from the Upper Cretaceous of the Haţeg Basin, Romania
FIGURE 5. Transylvanosaurus platycephalus gen. et sp. nov., holotype basicranium, FGGUB (LPB) R.2070, in dorsal and ventral view. A, photo and B, drawing of the basicranium in dorsal view. C, photo and D, drawing of the basicranium in ventral view. Abbreviations: boc, basioccipital; bpt, basipterygoid process; bsp, basisphenoid; btu, basal tubera; cn, cranial nerve; exo, exoccipital; fov, foramen ovalis; mri, midline ridge on the basal tubera; lsp, laterosphenoid; opi, opisthotic; pap, paroccipital process; pit, pituitary fossa; pro, prootic; prp, prootic process.
FIGURE 3 in A new ornithopod dinosaur, <i>Transylvanosaurus platycephalus</i> gen. et sp. nov. (Dinosauria: Ornithischia), from the Upper Cretaceous of the Haţeg Basin, Romania
FIGURE 3. Transylvanosaurus platycephalus gen. et sp. nov., holotype basicranium, FGGUB (LPB) R.2070, in lateral view. A, photo and B, drawing of the basicranium in left lateral view. C, photo and D, drawing of the basicranium in right lateral view. Abbreviations: alp, alar process; boc, basioccipital; bpt, basipterygoid process; bsp, basisphenoid; btu, basal tubera; cn, cranial nerve; ctr, crista transversalis; ctu, crista tuberalis; exo, exoccipital; fov, foramen ovalis; ica, opening for the internal carotid artery; lgr, lateral groove; lsp, laterosphenoid; opi, opisthotic; pap, paroccipital process; pro, prootic; prp, prootic process.
Data from: A new phylogeny of Stegosauria (Dinosauria, Ornithischia)
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FIG. 34 in The Osteology Of Haya Griva (Dinosauria: Ornithischia) From The Late Cretaceous Of Mongolia
FIG. 34. Sacral region of IGM 100/2019 in left dorsolateral view. Abbreviations in appendix 1.
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