crâne

Type de vue

180 image(s) · 11 Actualités

Galerie d'images

Illustration d'un Brontosaure dans l'eau et d'un Diplodocus sur terre. L'idée que le Brontosaure était entièrement ou principalement aquatique est aujourd'hui considérée comme dépassée. L'image d'une queue traînant au sol et d'un crâne semblable à celui du Camarasaurus est également inexacte.

dessin paléoart Brontosaurus Camarasaurus +2
Taxons Janusaurus

The skull of Janusaurus lundi (PMO 222.654). A: Photo in right lateral view of the skull. B: Right lateral view with interpretation of the individual elements. Abbreviations: a, angular; art, articular; d, dentary; en, external naris; j, jugal; l, lacrimal; mx, maxilla; n, nasal; or, orbit; p, parietal; pmx, premaxilla; po, postorbital; pof, postfrontal; prf, prefrontal; q, quadrate; qj, quadratojugal; sa, surangular; st, supratemporal. Scale = 5 cm.

écaille Janusaurus crâne
Taxons Xiphodracon

The holotype and only known specimen of the hauffiopterygian leptonectid, Xiphodracon goldencapensis (ROM VP52596) from Golden Cap, between Charmouth and Seatown, Dorset, UK. The skeleton is exposed in ventrolateral view. The skull has been fully prepared free of matrix whereas most of the skeleton is still in matrix. The left (upper) forefin has been prepared so that it is three-dimensionally preserved and projects upwards. Scale bar represents 20 cm.

écaille Royaume-Uni holotype spécimen +4
Taxons Jinchuanloong

Skull of Jinchuanloong niedu (JCMF0132) in left lateral view.

Jinchuanloong crâne
Taxons Eternauta

Skull of Eternauta patagonica (photograph and diagram in right view)

Eternauta crâne

Jinchuanloong is a relatively basal sauropod that measured an estimated 10 m in length. Sauropod skulls typically don't preserve well in the fossil record, but Jinchuanloong is known mainly from the skull, and parts of the neck and tail. Like all sauropods, Jinchuanloong was a quadrupedal herbivore that used its long neck to reach the vegetation that it fed on.

fossile Jinchuanloong crâne

Dinosaur sand sculptures at the Sand Sculpting Australia "Dinostory" exhibit held at Frankston, Victoria, Australia 2008/2009.The sculpture was the created with the combined efforts of an international team of sand sculpting artists: Karen Fralich (Canada) - children playing in foreground; Peter Bignell (Tasmania, Australia) - Triceratops skull and logo; Martijn Rijerse (Netherlands) - Tyrannosaurus rex scene; Jino van Bruissenen and Christina Mija (NSW, Australia) - background panel.

Australie Canada Pays-Bas Triceratops +2

Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 23 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original (most notably, figures 3 and 4 were swapped to minimize confusion). Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1.— Right side of skull. Fig. 2. — Cross-section of posterior portion of the lower jaw, taken above the point marked A on the lateral view of the skull. Fig. 3. — Cross-section of the upper and lower jaws, taken at the break immediately behind the point marked Sp on the lateral view of the skull. Fig. 4. — Lateral view of an anterior caudal centrum. Legend (modified from original): Ar - articular A - angular D - dentary J - jugal L - lacrimal Mx - maxilla Po - postorbital Sa - surangular Se - sclerotic ring Sp - spenial T - cross-section of tooth X - doubtful element

description Trias holotype spécimen +5

Life restoration of Proceratosaurus bradleyi. Missing parts of skull are consistent with those of the related Guanlong per:[1] Body proportions are consistent with the skeletal reconstruction of Guanlong in fig. 11 here:[2]

reconstitution restauration Coeluridae Guanlong +2

Barracudasauroides panxianensis, skull. Stage : Anisian from 247.2 million years ago until ~242 million years ago. Size and weight : 118x62x545 cm – 79.4 Kg

Anisien Barracudasauroides Mixosauridae crâne

Plioplatecarpus primaevus skull, Oxford University Museum of Natural History .

musée Plioplatecarpini Plioplatecarpus Selmasaurini +1

Diagram of the skull of Taniwhasaurus antarcticus, the areas in black being the known fossil material. Reference source: Álvarez–Herrera, Agnolin & Novas (2020) "A rostral neurovascular system in the mosasaur Taniwhasaurus antarcticus"

fossile Plioplatecarpinae Taniwhasaurus crâne
Taxons Alioramini

Alioramus altai skull in the exhibit, T. rex, The Ultimate Predator, in the American Museum of Natural History (with permission by Ben Miller).

prédateur musée Alioramini Alioramus +1
Taxons Ctenochasmatoidea

Pterodaustro skull

Archaeopterodactyloidea Aurorazhdarchidae Ctenochasmatoidea Euctenochasmatia +2
Taxons Euctenochasmatia

Pterodaustro skull

Archaeopterodactyloidea Aurorazhdarchidae Ctenochasmatoidea Euctenochasmatia +2
Taxons Archaeopterodactyloidea

Pterodaustro skull

Archaeopterodactyloidea Aurorazhdarchidae Ctenochasmatoidea Euctenochasmatia +2
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Actualités

Un mini-prédateur vieux de 242 millions d'années change l'évolution du lézard
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
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