Fig 1.
Partial skull of Maiothisavros dianeae (ROMVP 87366) and corresponding renderings based on CT imaging sequences.
(A) left lateral view and (C) right lateral view of Maiothisavros dianeae ROMVP87366 specimen photo. (B) left lateral and (D) right lateral three-dimensional model of Maiothisavros dianeae from CT image sequences. Abbreviation: an, angular; ac, anterior coronoid; cp, cultriform process; d, dentary; j, jugal; m, maxilla; pal, palatine; pc, posterior coronoid; pm, premaxilla; pra, prearticular; pt, pterygoid; r, rib; sa, surangular; sp, splenial;?, unknown element.
Fig 2.
Specimen photograph displaying vertical reeding on the tooth crown of dentary, maxilla, and transverse flange of the pterygoid in Maiothisavros dianeae (ROMVP 87366).
(A) left dentary and maxilla in lateral view, (B) transverse flange of the pterygoid in posterior view. Abbreviation: c, carina; d, dentary; re, reeding; m, maxilla; pli, plicidentine; pt, pterygoid.
Fig 3.
Rendering of maxillary innervation from CT imaging sequences of Maiothisavros dianeae (ROMVP 87366).
Innervation shown in green for (A) left maxilla in lateral view and (B) and dorsal view, (C) right maxilla in lateral view and (D) dorsal view.
Fig 4.
Rendering of Maiothisavros dianeae (ROMVP 87366) right jugal from CT image sequences.
(A) and (B) are medial views, whereas (C) and (D) are lateral views of jugal from ROMVP 87366.
Fig 5.
Rendering of palatal elements present in Maiothisavros dianeae (ROMVP 87366) from CT image sequences.
Palatal elements, including right and left pterygoid, palatine, and cultriform process in (A) anteroposterior, (B) left lateral, (C) ventral, and (D) dorsal views. Abbreviations: cp, cultriform process; pal, palatine; pt, pterygoid.
Fig 6.
Rendering of Maiothisavros dianeae (ROMVP 87366) mandible from CT imaging sequences.
Right and left dentary, right and left angular, right and left splenial, right surangular, anterior coronoid, and posterior left coronoids in (A) right lateral, (B) left lateral, (C) dorsal, and (D) ventral views. Abbreviation: an, angular; ac, anterior coronoid; d, dentary; pa, pathology; pc, posterior coronoid; pra, prearticular; sa, surangular; sp, splenial.
Fig 7.
Pathology of right dentary compared to the normal area in the left dentary for (ROMVP 87366).
(A) right and (D) left dentary renderings. Individual cross-sectional CT images for (B) and (C) displaying the pathology area, whereas (E), (F), and (G) display the same area but for the normal segment.
Fig 8.
Rendering and photograph of Maiothisavros dianeae right dentary.
ROMVP 87367, right dentary in (A) labial, (B) lingual, (C) occlusal, and (D) ROMVP 87368 photograph of tooth positions 8 and 9 in lingual view showing resorption pits. Abbreviation: rp, resorption pit.
Fig 9.
Histology of Maiothisavros dianeae left dentary (ROMVP87370).
(A) Lingual view of fragmented left dentary with dashed red line showing the plane of the longitudinal section through the functional tooth. (B) Complete view longitudinal thin section at tooth position 3. (C) Close-up view of functional tooth section showing incremental lines, white arrows. (D) Close-up section showing tooth attachment tissues. (E) Cross-section near the tooth base showing plicidentine. Abbreviation: ab, alveolar bone; ac, acellular cementum; de, dentine; en, enamel; jb, jawbone; pli, plicidentine; rl, reversal line.
Fig 10.
Photograph of replacement teeth in positions for Maiothisavros dianeae (ROMVP 87369).
Right dentary in (A) lingual view and (B) close-up of two replacement teeth. Abbreviations: rt; replacement tooth.