crâne

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Galerie d'images

Reconstructed skull of Jaxartosaurus aralensis Riabinin, 1937. Only a posterior portion of the skull, as well as a surangular is known, with the rest of the skull being based mostly upon File:Aralosaurus skull.png. Jaxartosaurus is currently classified as a basal lambeosaurine, more derived than Aralosaurini, but more primitive than Parasaurolophini and Lambeosaurini. It might be more derived than Tsintaosaurini (Godefroit et al., 2004). References: 
Riabinin, A.M. (1937). "A New Finding of Dinosaurs in the Trans-Baikal Region". Ezhegodn. Vserossijskogo Palaeont. Obstcg. 11: 142–144
Godefroit, P.; Bolotsky, Y.L.; Van Itterbeeck, J. (2004). "The lambeosaurine dinosaur Amurosaurus riabinini, from the
Maastrichtian of Far Eastern Russia". Acta Palaeontologica Polonica 49(4): 585–618
Taxons Jaxartosaurus

Reconstructed skull of Jaxartosaurus aralensis Riabinin, 1937. Only a posterior portion of the skull, as well as a surangular is known, with the rest of the skull being based mostly upon File:Aralosaurus skull.png. Jaxartosaurus is currently classified as a basal lambeosaurine, more derived than Aralosaurini, but more primitive than Parasaurolophini and Lambeosaurini. It might be more derived than Tsintaosaurini (Godefroit et al., 2004). References: Riabinin, A.M. (1937). "A New Finding of Dinosaurs in the Trans-Baikal Region". Ezhegodn. Vserossijskogo Palaeont. Obstcg. 11: 142–144 Godefroit, P.; Bolotsky, Y.L.; Van Itterbeeck, J. (2004). "The lambeosaurine dinosaur Amurosaurus riabinini, from the Maastrichtian of Far Eastern Russia". Acta Palaeontologica Polonica 49(4): 585–618

Russie Maastrichtien Amurosaurus Aralosaurini +7
Megacephalosaurus eulerti reconstructed skull in the Rocky Mountain Dinosaur Resource Center, Woodland Park, Colorado.
Taxons Megacephalosaurus

Megacephalosaurus eulerti reconstructed skull in the Rocky Mountain Dinosaur Resource Center, Woodland Park, Colorado.

Dinosauria Megacephalosaurus crâne
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.
Taxons Lophorhothon

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.

dent holotype Lophorhothon partiel +1
The skull of the holotype of Acristavus, MOR 1155
Taxons Acristavus

The skull of the holotype of Acristavus, MOR 1155

holotype Acristavus Montanoceratops crâne
Holotype skull of Augustynolophus morrisi (LACM 2852) on display at the Natural History Museum of Los Angeles County.
Taxons Augustynolophus

Holotype skull of Augustynolophus morrisi (LACM 2852) on display at the Natural History Museum of Los Angeles County.

musée holotype Augustynolophus crâne
Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view.

Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).
Taxons Merriamosauria

Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view. Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).

dent États-Unis Trias supérieur Trias +4
Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view.

Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).
Taxons Shastasaurus

Partial skull of Shastasaurus pacificus (UCMP 9017) from the Late Triassic of California, USA, in (A) lateral, (B) dorsal, and (C) anterolateral view. Based on this skull, Shastasaurus has repeatedly been reconstructed with a long, tooth-bearing rostrum. However, note the slenderness of the lower jaw (B, C) and the strong anterior taper of the snout (B), both of which are more consistent with the abbreviated and toothless snout of Shastasaurus liangae comb. nov. than with the traditional long-snouted reconstruction of this skull (as, e.g., in references [22] and [23]).

dent États-Unis Trias supérieur Trias +4
Albertosaurus skull cast (specimen TMP 1981.010.0001) at the Geological Museum in Copenhagen.
Taxons Albertosaurinae

Albertosaurus skull cast (specimen TMP 1981.010.0001) at the Geological Museum in Copenhagen.

musée moulage spécimen Albertosaurinae +2
Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Taxons Caenagnathidae

Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)

vertèbre spécimen Anzu Caenagnathidae +2
Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.
Taxons Hueneosauria

Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.

musée Trias moyen Trias spécimen +4
Skull of Globidens dakotensis in the Field Museum of Natural History.
Taxons Globidensini

Skull of Globidens dakotensis in the Field Museum of Natural History.

musée Globidens Globidensini crâne
Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia.
File:Stegoceras mount.jpg
File:Dinosauria - Prenocephale.jpg
File:Fossil Pachycephalosaurus.jpg
File:Homalocephale skull.jpg
Taxons Pachycephalosauria

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

fossile Dinosauria Homalocephale Pachycephalosauria +3
Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.
Taxons Pteranodontia

Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.

musée spécimen Pteranodon Pteranodontia +1
Several members of Pterodactyloidea (top to bottom):  Pteranodon, Pterodaustro, the skulls of several pterosaurs (Guidraco, Anhanguera, Tupandactylus, and an unnamed dsungaripterid), Quetzalcoatlus, Aerodactylus, and Coloborhynchus
Taxons Pterodactyloidea

Several members of Pterodactyloidea (top to bottom): Pteranodon, Pterodaustro, the skulls of several pterosaurs (Guidraco, Anhanguera, Tupandactylus, and an unnamed dsungaripterid), Quetzalcoatlus, Aerodactylus, and Coloborhynchus

Aerodactylus Anhanguera Coloborhynchus Dsungaripteridae +8
Duck-billed dinosaurs at the Royal Ontario Museum. A Maiasaura skeleton is visible on the foreground, with two Maiasaura juveniles at the foot of the skeletal mount. On the background, flushing with the wall, there's the two-dimensional mount of a Gryposaurus specimen. The unidentified skull of another duck-billed dinosaur is visible on the low right corner of the photograph.
Taxons Hadrosauridae

Duck-billed dinosaurs at the Royal Ontario Museum. A Maiasaura skeleton is visible on the foreground, with two Maiasaura juveniles at the foot of the skeletal mount. On the background, flushing with the wall, there's the two-dimensional mount of a Gryposaurus specimen. The unidentified skull of another duck-billed dinosaur is visible on the low right corner of the photograph.

musée juvénile spécimen Dinosauria +5
Duck-billed dinosaurs at the Royal Ontario Museum. A Maiasaura skeleton is visible on the foreground, with two Maiasaura juveniles at the foot of the skeletal mount. On the background, flushing with the wall, there's the two-dimensional mount of a Gryposaurus specimen. The unidentified skull of another duck-billed dinosaur is visible on the low right corner of the photograph.
Taxons Hadrosauridae

Duck-billed dinosaurs at the Royal Ontario Museum. A Maiasaura skeleton is visible on the foreground, with two Maiasaura juveniles at the foot of the skeletal mount. On the background, flushing with the wall, there's the two-dimensional mount of a Gryposaurus specimen. The unidentified skull of another duck-billed dinosaur is visible on the low right corner of the photograph.

musée juvénile spécimen Dinosauria +5
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Actualités

Un fossile vieux de 250 millions d'années révèle les origines de l'audition des mammifères
os mâchoire fossile mammifères crâne
L’audition sensible pourrait avoir évolué chez les ancêtres des mammifères bien plus tôt que ne le croyaient les scientifiques. En modélisant la façon dont le son se déplaçait dans le crâne de Thrinaxodon, un prédécesseur mammifère vieux de 250 millions d'années, les chercheurs ont découvert qu'il utilisait probablement un tympan précoce pour entendre les sons aériens. Cela remet en question l’idée répandue selon laquelle ces animaux « écoutaient » principalement à travers leurs mâchoires ou leurs os. Les résultats révèlent qu’une caractéristique clé de l’audition des mammifères modernes prenait déjà forme au plus profond de la préhistoire.
20/01/2026 sciencedaily ⚙ Traduction automatique
Anurognathus: Beast of the Week
Anurognathus : la bête de la semaine
Allemagne Jurassique Jurassique supérieur Anurognathus Pterosauria crâne
Cette semaine, nous allons découvrir un petit ptérosaure unique, Anurognathus ammoni !  Anurognathus vivait dans ce qui est aujourd'hui l'Allemagne à la fin du Jurassique, il y a environ 150 millions d'années.  Il était minuscule, avait une envergure de 35,5 cm (14 pouces) et aurait probablement mangé des insectes.  Son nom de genre se traduit par "Frog Jaw" puisque son crâne ressemblait à celui d'une grenouille, étant extrêmement émoussé avec une bouche large.  Reconstitution à l'aquarelle d'Anurognathus ammoni par Christopher DiPiazza.Sku d'Anurognathus
14/12/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
Un mini-prédateur vieux de 242 millions d'années change l'évolution du lézard
membre dent prédateur fossile évolution nouvelle espèce crâne
Un minuscule fossile du Devon vieux de 242 millions d’années bouleverse les hypothèses des scientifiques sur les premiers membres de la lignée des lézards. Au lieu des charnières du crâne et des dents du palais typiques des lézards et des serpents modernes, cette ancienne créature présente un mélange surprenant de traits primitifs et inhabituels, ainsi que des dents étonnamment grandes en forme de lame. Les scans synchrotron haute résolution ont révélé des détails invisibles à l'œil nu, aidant ainsi les chercheurs à nommer la nouvelle espèce Agriodontosaurus helsbypetrae
30/11/2025 sciencedaily ⚙ Traduction automatique
Les humains ont évolué plus vite que n’importe quel autre singe
croissance évolution crâne
Les scientifiques de l'UCL ont découvert que les crânes humains évoluaient beaucoup plus rapidement que ceux des autres singes, reflétant les forces puissantes qui conduisent la croissance de notre cerveau et l'aplatissement de notre visage. En comparant des modèles 3D de crânes de singes, ils ont montré que les humains changeaient environ deux fois plus que prévu. Les résultats suggèrent que des facteurs cognitifs et sociaux, et pas seulement l’intelligence, ont influencé notre évolution.
29/10/2025 sciencedaily-human-evo ⚙ Traduction automatique
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