crâne

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386 image(s) · 29 Actualités

Galerie d'images

Zhejiangopterus linhaiensis, skull (cast), Zhejiang Geological Museum

Zhejiangopterus linhaiensis, skull (cast), Zhejiang Geological Museum

musée moulage Zhejiangopterus crâne
Skull of Caiuajara dobruskii gen. et sp. nov. (holotype, CP.V 1449) with the shape of an adult individual.

Scale bar equals 50: d, dentary; dcr, dentary crest; dep, depression; exp, ventral expansion of the premaxilla; f, frontal; fcr, frontal crest; fo, foraminae; m, maxilla; oc, occipital condyle; op, opisthotic; p, parietal; pm, premaxilla; pmcr, premaxillary crest; q, quadrate; soc, supraoccipital. The quadrate is inverted.

Skull of Caiuajara dobruskii gen. et sp. nov. (holotype, CP.V 1449) with the shape of an adult individual. Scale bar equals 50: d, dentary; dcr, dentary crest; dep, depression; exp, ventral expansion of the premaxilla; f, frontal; fcr, frontal crest; fo, foraminae; m, maxilla; oc, occipital condyle; op, opisthotic; p, parietal; pm, premaxilla; pmcr, premaxillary crest; q, quadrate; soc, supraoccipital. The quadrate is inverted.

crête écaille holotype Caiuajara +1
Reconstructed skull of Caupedactylus.

Reconstructed skull of Caupedactylus.

Brésil Caupedactylus crâne
Azhdarchoid pterosaur Kariridraco dianae gen. et sp. nov. holotype (MPSC R 1056) from Lower Cretaceous of Northeastern Brazil. Skull in right lateral view. Photograph (A1), interpretative drawing (A2). Dark grey areas indicate remains of the carbonate matrix still attachaed to the skull.

Azhdarchoid pterosaur Kariridraco dianae gen. et sp. nov. holotype (MPSC R 1056) from Lower Cretaceous of Northeastern Brazil. Skull in right lateral view. Photograph (A1), interpretative drawing (A2). Dark grey areas indicate remains of the carbonate matrix still attachaed to the skull.

dessin Brésil Crétacé holotype +3
Nemicolopterus crypticus holotype (IVPP V-14377).

(A) Skeleton overview, and (B) schematic drawing. (C) Skull (right lateral view), and (D) schematic drawing. Abbreviations: cdv, caudal vertebrae; co, coracoid; cv, cervical vertebra; d1–d4, digits 1–4; f, frontal; fe, femur; h, humerus; hy, hyoid; il, illium; is, ischium; j, jugal; l, left; la, lacrimal; mand, mandible; mc, metacarpal; mt, metatarsal; naof, nasoantorbital fenestra; or, orbit; pa, parietal; pm, premaxilla; ph, phalanx; ti, tibia; r, right; sca, scapula. Scale bars: A–B, 100 mm; C–D, 5 mm.

Nemicolopterus crypticus holotype (IVPP V-14377). (A) Skeleton overview, and (B) schematic drawing. (C) Skull (right lateral view), and (D) schematic drawing. Abbreviations: cdv, caudal vertebrae; co, coracoid; cv, cervical vertebra; d1–d4, digits 1–4; f, frontal; fe, femur; h, humerus; hy, hyoid; il, illium; is, ischium; j, jugal; l, left; la, lacrimal; mand, mandible; mc, metacarpal; mt, metatarsal; naof, nasoantorbital fenestra; or, orbit; pa, parietal; pm, premaxilla; ph, phalanx; ti, tibia; r, right; sca, scapula. Scale bars: A–B, 100 mm; C–D, 5 mm.

humérus écaille vertèbre dessin +4
Australian Mesozoic pterosaurs. A, Aussiedraco molnari (QM F10613; holotype) mandible in dorsal view. Scale = 1 cm. B, Mythunga camara (QM F18896; holotype) partial skull and mandible in left lateral view. Scale = 5 cm. C, Thapunngaka shawi (KK F494; holotype) mandible in left lateral view. Scale = 5 cm. D, Ferrodraco lentoni (AODF 0876; holotype [part]) partial skull and mandible in left lateral view. Scale = 5 cm.

Australian Mesozoic pterosaurs. A, Aussiedraco molnari (QM F10613; holotype) mandible in dorsal view. Scale = 1 cm. B, Mythunga camara (QM F18896; holotype) partial skull and mandible in left lateral view. Scale = 5 cm. C, Thapunngaka shawi (KK F494; holotype) mandible in left lateral view. Scale = 5 cm. D, Ferrodraco lentoni (AODF 0876; holotype [part]) partial skull and mandible in left lateral view. Scale = 5 cm.

écaille Mésozoïque holotype Aussiedraco +6
Reconstruction of the Abelisaurus skull with original bones of the holotype. Museo Provincial Carlos Ameghino, Cipolletti, Argentina. Scale = 10 cm

Reconstruction of the Abelisaurus skull with original bones of the holotype. Museo Provincial Carlos Ameghino, Cipolletti, Argentina. Scale = 10 cm

os écaille Argentine holotype +3
The theropod skull displays the distinctive features of this apex predator, including a long, robust snout, conical teeth, and strong jaw muscles adapted for gripping and tearing prey.

The theropod skull displays the distinctive features of this apex predator, including a long, robust snout, conical teeth, and strong jaw muscles adapted for gripping and tearing prey.

prédateur proie Rajasaurus crâne
Reconstructed skull of Duriavenator hesperis showing known material (white) of the holotype and only known specimen. Unknown bones based on related Eustreptospondylus oxoniensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy based on Benson (2008) "A redescription of "Megalosaurus" hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom"

Reconstructed skull of Duriavenator hesperis showing known material (white) of the holotype and only known specimen. Unknown bones based on related Eustreptospondylus oxoniensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy based on Benson (2008) "A redescription of "Megalosaurus" hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom"

os écaille Royaume-Uni Bajocien +11
Reconstructed skull of Wiehenvenator albati based on holotype specimen (white). Scale bar is 10cm, image if 10px/cm. Unknown material based on related Torvosaurus tanneri. Cranial anatomy based on Rauhut et al (2016) "A new megalosaurid theropod dinosaur from the late Middle Jurassic (Callovian) of north-western Germany: implications for theropod evolution and faunal turnover in the Jurassic"

Reconstructed skull of Wiehenvenator albati based on holotype specimen (white). Scale bar is 10cm, image if 10px/cm. Unknown material based on related Torvosaurus tanneri. Cranial anatomy based on Rauhut et al (2016) "A new megalosaurid theropod dinosaur from the late Middle Jurassic (Callovian) of north-western Germany: implications for theropod evolution and faunal turnover in the Jurassic"

écaille Allemagne Callovien Jurassique +10
Reconstruceted skull of Dubreuillosaurus illustrating known (white) and unknown (grey) material. Scale bar is 10cm. Based of figures and description of Allain (2002) "Discovery of megalosaur (Dinosauria, Theropoda) in the middle Bathonian of Normandy (France) and its implications for the phylogeny of basal Tetanurae"

Reconstruceted skull of Dubreuillosaurus illustrating known (white) and unknown (grey) material. Scale bar is 10cm. Based of figures and description of Allain (2002) "Discovery of megalosaur (Dinosauria, Theropoda) in the middle Bathonian of Normandy (France) and its implications for the phylogeny of basal Tetanurae"

écaille description France Bathonien +8
Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.

Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.

os écaille Chine Jurassique +9
Riparovenator milnerae holotype skull

Riparovenator milnerae holotype skull

holotype Riparovenator crâne
Ceratosuchops inferodios Holotype skull fragments

Ceratosuchops inferodios Holotype skull fragments

holotype Ceratosuchops crâne
Caihong juji holotype specimen (PMoL-B00175). Photographs of the slab (a) and counter slab (b) and line drawing (c) of the specimen based on both slabs. Photograph (d) and line drawing (e) of a composite of the rostrum of the skull and mandible exposed on the counter slab and the post-rostrum cranium exposed on the slab. Arrows indicate lacrimal crests. Question mark indicates uncertain identification. Scale bars: 10 cm a–c, 1 cm d and e. aof antorbital fenestra, cav caudal vertebra, cev cervical vertebra, dr dorsal rib, dv dorsal vertebra, ect ectopterygoid, emf external mandibular fenestra, en external naris, f feather, fu furcula, ga gastralia, hy hyoid, il ilium, is ischium, la left angular, lar left articular, lc left coracoid, lcr lacrimal crest, ld left dentary, lf left, frontal, lfe left femur, lh left humerus, lj left jugal, ll left lacrimal, lma left maxilla, lm left manus, ln left nasal, lp left pes, lpa left palatine, lpo left postorbital, lq left quadrate, lqj left quadratojugal, lr left radius, ls left scapula, lsp left splenial, lsa left surangular, lsq left squamosal, lt left tibiotarsus, lu left ulna, ma mandible, mf maxillary fenestra, o orbit, p parietal, pm premaxilla, pt pterygoid, pu pubis, rar right articular, rc right coracoid, rd right dentary, rfe right femur, rh right humerus, rm right manus, rp right pes, rpra right prearticular, rq right quadrate, rr right radius, rs right scapula, rt right tibiotarsus, ru right ulna, scl sclerotic bones, sk skull, sy synsacrum

Caihong juji holotype specimen (PMoL-B00175). Photographs of the slab (a) and counter slab (b) and line drawing (c) of the specimen based on both slabs. Photograph (d) and line drawing (e) of a composite of the rostrum of the skull and mandible exposed on the counter slab and the post-rostrum cranium exposed on the slab. Arrows indicate lacrimal crests. Question mark indicates uncertain identification. Scale bars: 10 cm a–c, 1 cm d and e. aof antorbital fenestra, cav caudal vertebra, cev cervical vertebra, dr dorsal rib, dv dorsal vertebra, ect ectopterygoid, emf external mandibular fenestra, en external naris, f feather, fu furcula, ga gastralia, hy hyoid, il ilium, is ischium, la left angular, lar left articular, lc left coracoid, lcr lacrimal crest, ld left dentary, lf left, frontal, lfe left femur, lh left humerus, lj left jugal, ll left lacrimal, lma left maxilla, lm left manus, ln left nasal, lp left pes, lpa left palatine, lpo left postorbital, lq left quadrate, lqj left quadratojugal, lr left radius, ls left scapula, lsp left splenial, lsa left surangular, lsq left squamosal, lt left tibiotarsus, lu left ulna, ma mandible, mf maxillary fenestra, o orbit, p parietal, pm premaxilla, pt pterygoid, pu pubis, rar right articular, rc right coracoid, rd right dentary, rfe right femur, rh right humerus, rm right manus, rp right pes, rpra right prearticular, rq right quadrate, rr right radius, rs right scapula, rt right tibiotarsus, ru right ulna, scl sclerotic bones, sk skull, sy synsacrum

crête plume humérus écaille +7
Skull reconstruction of Shanag ashile based on holotype IGM 100/1119, missing elements based on Sinornithosaurus.

Skull reconstruction of Shanag ashile based on holotype IGM 100/1119, missing elements based on Sinornithosaurus.

holotype Shanag Sinornithosaurus crâne
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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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