dent

Restoration of the Chinese theropod "Sinopliosaurus fusuiensis" as a generalized spinosaurid. Silhouette of the holotype tooth is visible.

dent de Globidens aegyptiacus. La couronne dentaire montre bien le mode "broyeur" de ce Mosasaure.

dent de Globidens aegyptiacus. La couronne dentaire montre bien le mode "broyeur" chez ce Mosasaure. A noter la cavité, vide, d'une dent de remplacement.

dent de Globidens aegyptiacus. La couronne dentaire montre bien le mode "broyeur" chez ce Mosasaure.

dent de Globidens aegyptiacus et dent de Mosasaurus beaugei montrant les cavités de la dent de remplacement

dent de Globidens aegyptiacus et dent de Mosasaurus beaugei montrant les cavités de la dent de remplacement

Representative taxa from the early Campanian Muthmannsdorf fauna from the Grünbach Formation, eastern Austria. A Doratodon carcharidens (Mesoeucrocodylia) mandible (PIUW 2349/57) in dorsal view (photo by Márton Rabi) B Indeterminate azhdarchid (Pterosauria, Azhdarchidae), left humerus (PIUW 2349/102) in anterior view C ‘Megalosaurus pannoniensis’ basal tetanuran (Theropoda, Tetanurae), tooth (PIUW uncatalogued) in lateral view D Mochlodon suessi (Ornithopoda, Rhabdodontidae), right dentary (holotype, PIUW 2349/2) in medial view. Scale bars equal 2 cm in A, B and D and 1 cm in C.

Representative taxa from the Santonian Iharkút fauna from the Csehbánya Formation, Bakony Mountains, western Hungary. A Pannoniasaurus inexpectatus (Squamata, Mosasauroidea), dorsal vertebra (MTM uncatalogued) in dorsal view (photo by Réka Kalmár) B Foxemys trabanti (Pleurodira, Bothremydidae), skull (MTM V 2010.215.1.) in dorsal view (photo by Márton Rabi). C Bicuspidon aff. hatzegiensis (Squamata, Borioteiioidea), left dentary (MTM 2006.112.1.) in medial view (photo by László Makádi) D Basal tetanuran (Theropoda, Tetanurae), tooth (MTM V.01.54) in ?lingual view E Indeterminate abelisaurid (Theropoda, Abelisauridae), pedal ungual phalanx (MTM V 2008.43.1.) in lateral view F Pneumatoraptor fodori (Theropoda, Paraves), left scapulocoracoid (holotype, MTM V 2008.38.1.) in lateral view G Mochlodon vorosi (Ornithopoda, Rhabdodontidae), left dentary (holotype, MTM V 2010.105.1) in lateral view H Bakonydraco galaczi (Pterosauria, Azhdarchidae), mandible (holotype, MTM 2007.110.1) in dorsal view I Iharkutosuchus makadii (Eusuchia, Hylaeochampsidae), skull (holotype, MTM 2006.52.1) in dorsal view J Hungarosaurus tormai (Ankylosauria, Nodosauridae), right dentary (MTM 2007.25.2) in lateral view K Bauxitornis mindszentyae (Aves, Enantiornithes), left tarsometatarsus (holotype, MTM V 2009.38.1) in anterior view L Ajkaceratops kozmai (Ceratopsia), fused rostral and premaxillae (holotype, MTM V 2009.192.1) in lateral view. Scale bars: 2 cm in A, V, G, H, I, J; 1 cm in D, E, F, K, L; 1 mm in C.

Restoration of the spinosaurid dinosaur Siamosaurus in the Sao Khua Formation palaeoenvironment, with Sunosuchus in the middle left and a herd of Phuwiangosaurus in the background. References: Siamosaurus based on tooth specimens [1] and the neural spine of a possibly referable skeleton[2], with other missing elements filled in with relatives (Suchomimus[3], Baryonyx[4], IchthyovenatorFile:Ichthyovenator_laosensis_skeletal_reconstruction_by_PaleoGeek.png). Phuwiangosaurus based on skeletal by Suteethorn et al. (2009)[5] and missing elements of skull of EuhelopusFile:Euhelopus.png. Sunosuchus based on Suteethorn and Ingavat (1983)[6] and missing elements based on Goniopholis[7].

A 1.7cm tall tooth from Liodon anceps. Cretaceous, Phosphate beds, Kouribga, Morocco.

Fig. 2. Side view of crown of tooth of Cardiodon rugulosus. Fig. 3. Fore end of the same tooth. Fig. 4. Hind end of the crown of another tooth of Cardiodon rugulosus. Fig. 5. Magnified view of markings on the surface of the enamel of the same tooth. All the figures are of the natural size. 2-5 are from the Forest Marble of Bradford, Wilts. In the Collection of Channing Pearce, Esq., of that town.

Fig. 1. Type material of Amygdalodon patagonicus Cabrera. 1947. A. B. Tooth, MLP 46-VIII-21-1/13, in lingual (A) and labial (B) view. C. D, E. Cervical vertebra, MLP 46-VIII-21-1/8. in right lateral (C, stereopair), ventral (D) and left lateral (E) view. F, G. Right cervical prezygapophysis, MLP 46-VIII-21-117. in dorsal (F) and medial (G) view. H. Anterior dorsal neural spine, MLP 46-VIII-21-116. in posterior view. I, J, K. Posterior dorsal vertebra, MLP 46-VIII-21-112, lectotype, in right lateral view (I, stereopair), right lateral view, with right wall of neural canal remived (J), and posterior (K) view. L, M. Caudal vertebra, MLP 46-VIII-21-1/3, in left lateral (L) and posterior (M) view. N. Caudal vertebra, MLP 46-VIII-21-1/4, in right lateral view. (O). Proximal fragment of a dorsal rib, MLP 46-VIII-21-1/9, in anterolateral view. Abbreviations: acdl, anterior centrodiapophyseal lamina; cprl, centroprezygapophyseal lamina; g, groove; k, ventral keel; pcdl, posterior centrodiapophyseal lamina; pod, postzygodiapophyseal lamina; poz, postzygapophysis; pp, parapophysis; prdl, prezygodiapophyseal lamina; spol, spinopostzgapophyseal lamina; sprl, spinoprezygapophyseal lamina; tprl, intraprezygapophyseal lamina. Scale bars 1 cm (A, B) and 10 cm (C-0).

Right dentary in (A), medial; (B), dorsal; and (C) lateral views. Dashed black lines represent approximate contours of the missing areas. Dashed red lines indicate the distinctive banding pattern in the opal used to estimate the extent of the missing area. (D–F) Three-dimensional renders of the posterior dentary fragment in (D) lingual view showing erupted (blue) and developing germ teeth (pink); (E) Same as (D) but with dentary removed; (F) dorsal (occlusal) view of tooth row. (G-J) Three-dimensional render of the best-preserved tooth in (G) mesial, (H) lingual, (I) distal, and (J) labial views. (K) MicroCT scan of the posterior dentary fragment in axial view showing preservation of cancellous bone. Abbreviations: cab, cancellous bone; cr, tooth crown. Photo credit: Phil Bell.

Skeletal elements of Lophorhothon atopus. (A, B and C) Partial skull roof and braincase (holotype FMNH 27383) in dorsal, ventral, and left lateral views. (D) Partial left nasal of FMNH 27383 in lateral view. (E) Left prefrontal of FMNH 27383 in lateral view. (F) Partial left jugal of FMNH 27383 in medial view. (G) Detail of marginal denticles of the dentary tooth in (H). (H) Apical half of a dentary tooth crown AUMP 2295 in lingual view. (I) Maxillary tooth crown of FMNH 27383 in labial view. (J) Left pubis of AUMP 2295 in lateral view. (K) Iliac process of the left ilium of FMNH 27383 in lateral view.

Partial skull of Manidens condorensis from the Middle Jurassic Cañadón Asfalto Formation of Argentina. Skull reconstructions in lateral view. Dashed lines indicate estimated edges. Abbreviations: a angular antfo antorbital fossa asaf anterior surangular foramen be buccal emargination bo basioccipital bt basal tubera d dentary d1, 2, 11 dentary tooth 1, 2, 11 emfo external mandibular fossa f frontal gl glenoid gr groove j jugal jfl jugal flange jh jugal horn m maxilla m1, 11 maxillary tooth 1, 11 n nasal pd predentary pm premaxilla po postorbital pof postorbital fossa popr paroccipital process q quadrate qj quadratojugal ri ridge sa surangular sq squamosal.

Figure 1, 1a. Outer and oral aspects of the imperfect dentary bone of Sarcolestes Leedsi, from the Oxford Clay of Peterborough. 2/3 nat size. s = symphysis. Figure 1b. A single tooth of the former. 3/1 nat size. Figure 2, 2a. Outer aspect and quadratic cavity of the hinder region of the same jaw. 2/3 nat size. Figure 3. A single tooth of Priodontognathus Phillipsi, 3/1 nat size, shown for purposes of comparison. Specimen in the Woodwardian Museum, Cambridge.