écaille

Partie anatomique

238 image(s) · 17 Actualités

Galerie d'images

Sarahsaurus aurifontanalis, referred skull (MCZ 8893), in (a) lateral, (b) occipital, (c) dorsal and (d) ventral views. an, angular; ar, articular; bo, basioccipital; bs, basisphenoid; ec, ectopterygoid; f, frontal; h, hyoid; j, jugal; l, lacrimal; ls, laterosphenoid; m, maxilla; n, nasal; op, opisthotic-exoccipital; p, parietal; po, postorbital; prf, prefrontal; pm, premaxilla; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal. Scale bar, 5 cm.
Taxons Sarahsaurus

Sarahsaurus aurifontanalis, referred skull (MCZ 8893), in (a) lateral, (b) occipital, (c) dorsal and (d) ventral views. an, angular; ar, articular; bo, basioccipital; bs, basisphenoid; ec, ectopterygoid; f, frontal; h, hyoid; j, jugal; l, lacrimal; ls, laterosphenoid; m, maxilla; n, nasal; op, opisthotic-exoccipital; p, parietal; po, postorbital; prf, prefrontal; pm, premaxilla; pt, pterygoid; q, quadrate; qj, quadratojugal; so, supraoccipital; sq, squamosal. Scale bar, 5 cm.

écaille Sarahsaurus crâne
Camposipterus nasutus comb. n. Holotype CAMSM B 54556 (Albian, Cambridge Greensand), anterior part of the rostrum A left lateral view B respective line drawing C ventral view D respective line drawing. Abbreviations: m – maxillae, pm – premaxillae, prid – palatal ridge. Arrows and numbers indicate alveoli or teeth and their respective position. Scale bar = 10 mm.
Taxons Camposipterus

Camposipterus nasutus comb. n. Holotype CAMSM B 54556 (Albian, Cambridge Greensand), anterior part of the rostrum A left lateral view B respective line drawing C ventral view D respective line drawing. Abbreviations: m – maxillae, pm – premaxillae, prid – palatal ridge. Arrows and numbers indicate alveoli or teeth and their respective position. Scale bar = 10 mm.

écaille dessin Albien holotype +1
Exposed elements of H. escuilliei holotype; ep epicleideum, st sternal plates. Scale bar: 70 mm.
Taxons Halszkaraptorinae

Exposed elements of H. escuilliei holotype; ep epicleideum, st sternal plates. Scale bar: 70 mm.

écaille holotype Barsboldia Halszkaraptorinae +1
Compsognathidae skeletons to scale.
Taxons Compsognathidae

Compsognathidae skeletons to scale.

écaille Compsognathidae squelette
Stratigraphy of the Upper Cretaceous Neuquén Group (after Garrido) indicating stratigraphic positions of definitive unenlagiine taxa (modified from Gianechini and Gianechini & Apesteguía). Skeletal reconstructions to approximate scale, redrawn and/or modified from works by Scott Hartman (Buitreraptor gonzalezorum, Austroraptor cabazai), Gabriel Lio (Unenlagia comahuensis, Neuquenraptor argentinus, Unenlagia paynemili), and Jaime Headden (Pamparaptor micros, Diuqin lechiguanae), used with permission
Taxons Unenlagiinae

Stratigraphy of the Upper Cretaceous Neuquén Group (after Garrido) indicating stratigraphic positions of definitive unenlagiine taxa (modified from Gianechini and Gianechini & Apesteguía). Skeletal reconstructions to approximate scale, redrawn and/or modified from works by Scott Hartman (Buitreraptor gonzalezorum, Austroraptor cabazai), Gabriel Lio (Unenlagia comahuensis, Neuquenraptor argentinus, Unenlagia paynemili), and Jaime Headden (Pamparaptor micros, Diuqin lechiguanae), used with permission

écaille Crétacé Austroraptor Buitreraptor +6
Cranium of Sarmientosaurus musacchioi gen. et sp. nov. (MDT-PV 2).

Photographs (A, C) and interpretive drawing (B) in right lateral (A, B) and left lateral (C) views. Abbreviations see text. Scale bar = 10 cm.
Taxons Diamantinasauria

Cranium of Sarmientosaurus musacchioi gen. et sp. nov. (MDT-PV 2). Photographs (A, C) and interpretive drawing (B) in right lateral (A, B) and left lateral (C) views. Abbreviations see text. Scale bar = 10 cm.

écaille dessin Diamantinasauria Sarmientosaurus
Figure 4
The reconstruction of the skull and lower jaw of the holotype of Darwinopterus camposi sp. nov. (IVPP V 17957). Scale bar: 50 mm. Abbreviations: d, dentary; f, frontal; j, jugal; ltf, lower temporal fenestra; m, maxilla; man.sys, mandibular symphysis; naof, nasoantorbital fenestra; o, orbit; p, parietal; pm, premaxilla; pmcr, premaxillary crest; po, postorbital; prn, nasal process; q, quadrate; sq, squamosal; utf, upper temporal fenestra.
Taxons Monofenestrata

Figure 4 The reconstruction of the skull and lower jaw of the holotype of Darwinopterus camposi sp. nov. (IVPP V 17957). Scale bar: 50 mm. Abbreviations: d, dentary; f, frontal; j, jugal; ltf, lower temporal fenestra; m, maxilla; man.sys, mandibular symphysis; naof, nasoantorbital fenestra; o, orbit; p, parietal; pm, premaxilla; pmcr, premaxillary crest; po, postorbital; prn, nasal process; q, quadrate; sq, squamosal; utf, upper temporal fenestra.

crête écaille holotype Darwinopterus +2
Skeletal reconstruction of Suchomimus tenerensis and Baryonyx walkeri to scale.
Taxons Baryonychinae

Skeletal reconstruction of Suchomimus tenerensis and Baryonyx walkeri to scale.

écaille Baryonychinae Baryonyx Suchomimus
A) Skull reconstruction of Murusraptor barrosaensis, MCF-PVPH-411. B) Body reconstruction of Murusraptor barrosaensis, MCF-PVPH-411.

Both illustrations show recovered elements in white. Scale bars: A = 10 cm, B = 1 m.
Taxons Megaraptora

A) Skull reconstruction of Murusraptor barrosaensis, MCF-PVPH-411. B) Body reconstruction of Murusraptor barrosaensis, MCF-PVPH-411. Both illustrations show recovered elements in white. Scale bars: A = 10 cm, B = 1 m.

écaille Megaraptora Murusraptor crâne
Kronosaurus queenslandicus (QM F18827; proposed neotype [part]) skull in dorsal view (modified from McHenry Citation2009). Scale = 30 cm.
Taxons Kronosaurus

Kronosaurus queenslandicus (QM F18827; proposed neotype [part]) skull in dorsal view (modified from McHenry Citation2009). Scale = 30 cm.

écaille Kronosaurus crâne
Carinodens acrodon holotype left maxilla (MHNM.KHG.1510) (A) compared to Xenodens calminechari holotype left maxilla (MHNM.KHG.331) (B), in lateral view; both from Sidi Chennane, Oulad Abdoun Basin, Morocco; Phosphates, Upper Couche III, uppermost Maastrichtian [9,24]. Scales = 50 mm.
Taxons Carinodens

Carinodens acrodon holotype left maxilla (MHNM.KHG.1510) (A) compared to Xenodens calminechari holotype left maxilla (MHNM.KHG.331) (B), in lateral view; both from Sidi Chennane, Oulad Abdoun Basin, Morocco; Phosphates, Upper Couche III, uppermost Maastrichtian [9,24]. Scales = 50 mm.

écaille Maroc Maastrichtien holotype +2
Reconstructed skeleton of a megaraptoran highlighting the known bones of Joaquinraptor casali in blue. Reconstruction by TK Robinson and Andrew McAfee. Scale bar=1 m.
Taxons Joaquinraptor

Reconstructed skeleton of a megaraptoran highlighting the known bones of Joaquinraptor casali in blue. Reconstruction by TK Robinson and Andrew McAfee. Scale bar=1 m.

os écaille Joaquinraptor Megaraptora +1
Hypothetical Plesiolophus skull reconstruction with known elements in white. Missing elements in grey. Scale bar 20 cm.
Taxons Plesiolophus

Hypothetical Plesiolophus skull reconstruction with known elements in white. Missing elements in grey. Scale bar 20 cm.

écaille crâne
Vertebrae of Gualicho shinyae from the fossil collection of the Museo patagónico de ciencias naturales Juan Carlos Salgado, General Roca, Río Negro. Scale as size reference.

Vertebrae of Gualicho shinyae from the fossil collection of the Museo patagónico de ciencias naturales Juan Carlos Salgado, General Roca, Río Negro. Scale as size reference.

écaille fossile Gualicho
Silesaurid left dentaries.

(A) Kwanasaurus williamparkeri (based primarily on DMNH EPV.63136) in lateral view, (B) same in medial view, (C) Asilisaurus kongwe (NMT R89) in lateral view, (D) same in medial view, (E) Eucoelophysis baldwini (GR 224) in lateral view, (F) same in medial view, (G) Technosaurus smalli (TTU P-9021, reversed) in lateral view, (H) same in medial view (also reversed), (I) Sacisaurus agudoensis (composite based on MCN PV10042 and MCN PV10043) in lateral view, (J) same in medial view, (K) Silesaurus opolensis (ZPAL AbIII/361/26) in lateral view, (L) same in medial view, (M) Diodorus scytobrachion (MNHM-ARG 30) in lateral view (reversed), (N) same in medial view (also reversed), (O) Soumyasaurus aenigmaticus (TTU-P1125b) in lateral view, (P) same in medial view. Dashed lines indicate broken edges. Unshaded regions indicate the surface of the specimen is not exposed. All scale bars = 1 cm.

Silesaurid left dentaries. (A) Kwanasaurus williamparkeri (based primarily on DMNH EPV.63136) in lateral view, (B) same in medial view, (C) Asilisaurus kongwe (NMT R89) in lateral view, (D) same in medial view, (E) Eucoelophysis baldwini (GR 224) in lateral view, (F) same in medial view, (G) Technosaurus smalli (TTU P-9021, reversed) in lateral view, (H) same in medial view (also reversed), (I) Sacisaurus agudoensis (composite based on MCN PV10042 and MCN PV10043) in lateral view, (J) same in medial view, (K) Silesaurus opolensis (ZPAL AbIII/361/26) in lateral view, (L) same in medial view, (M) Diodorus scytobrachion (MNHM-ARG 30) in lateral view (reversed), (N) same in medial view (also reversed), (O) Soumyasaurus aenigmaticus (TTU-P1125b) in lateral view, (P) same in medial view. Dashed lines indicate broken edges. Unshaded regions indicate the surface of the specimen is not exposed. All scale bars = 1 cm.

écaille spécimen Asilisaurus Diodorus +7
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.
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
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Actualités

Une momie de dinosaure retrouvée avec des sabots et une crête cachée
crête écaille film Dinosauria Edmontosaurus
Les scientifiques ont reconstitué le profil le plus complet et le plus réaliste d’Edmontosaurus annectens grâce à un processus de préservation extraordinaire appelé modèle d’argile, dans lequel un mince film d’argile a capturé la peau, les écailles, les pointes et même les sabots du dinosaure en trois dimensions. En combinant des «momies» récemment fouillées, une imagerie avancée et une reconstruction artistique, les chercheurs ont révélé une haute crête, une seule rangée de pointes de queue, de délicates écailles ressemblant à des cailloux et, ce qui est le plus remarquable, le plus ancien sabot connu.
30/11/2025 sciencedaily ⚙ Traduction automatique
Lepidotes: Beast of the Week
Lépidotes : la bête de la semaine
écaille reconstitution Crétacé Crétacé inférieur Jurassique inférieur Jurassique Dinosauria
 Cette fois-ci, nous examinerons une espèce unique de poissons préhistoriques qui nageaient dans les rivières et les lacs tandis que certains des plus grands dinosaures marchaient sur terre.  Découvrez Lepidotes ! Reconstitution à l'aquarelle de Lepidotes gigas par Christopher DiPiazza. Les Lepidotes étaient un genre de poissons osseux à fortes écailles qui vivaient dans ce qui est aujourd'hui l'Europe et l'Amérique du Nord au début du Jurassique, il y a entre 180 et 175 millions d'années.  Le genre a peut-être même persisté jusqu'au Crétacé inférieur, il y a seulement 115 millions d'années, mais
29/06/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
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