Dinosauria

Taxon

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Skull of Lesothosaurus - ornithischian dinosaur
Taxons Lesothosaurus

Skull of Lesothosaurus - ornithischian dinosaur

Dinosauria Lesothosauria Ornithischia crâne
The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.
Taxons Glyptodontopelta

The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.

armure musée Mexique Denver +9
Tracks of the dinosaur Pseudotetrasauropus bipedoida.
Taxons Pseudotetrasauropus

Tracks of the dinosaur Pseudotetrasauropus bipedoida.

empreintes Dinosauria Pseudotetrasauropus
In 2000 a virtually complete Scelidosaurus skeleton was discovered in England. This fossil's hundreds of armor plates and spikes are preserved in their life positions, providing extraordinary details about how this dinosaur looked. St. George is the only place anywhere in the Western Hemisphere that the 11-foot long Scelidosaurus replica has been on display.
The St. George Dinosaur Discovery Site at Johnson Farm (St. George, Utah) is home to exceptionally well-preserved dinosaur tracks, some displaying skin impressions. These tracks, along with hundreds of fossil fish, plants, rare dinosaur remains, invertebrates traces and important sedimentary structures, show evidence that this site was produced along the western edge of a large, Early Jurassic (age between 195-198 million years ago) freshwater lake named Lake Dixie. 

Source: www.sgcity.org/dinotrax/
Taxons Scelidosaurus

In 2000 a virtually complete Scelidosaurus skeleton was discovered in England. This fossil's hundreds of armor plates and spikes are preserved in their life positions, providing extraordinary details about how this dinosaur looked. St. George is the only place anywhere in the Western Hemisphere that the 11-foot long Scelidosaurus replica has been on display. The St. George Dinosaur Discovery Site at Johnson Farm (St. George, Utah) is home to exceptionally well-preserved dinosaur tracks, some displaying skin impressions. These tracks, along with hundreds of fossil fish, plants, rare dinosaur remains, invertebrates traces and important sedimentary structures, show evidence that this site was produced along the western edge of a large, Early Jurassic (age between 195-198 million years ago) freshwater lake named Lake Dixie. Source: www.sgcity.org/dinotrax/

armure peau Jurassique inférieur Jurassique +7
Cairanoolithus, a fossil dinosaur egg. Took the photo at Fossil Show, Munich
Taxons Cairanoolithus

Cairanoolithus, a fossil dinosaur egg. Took the photo at Fossil Show, Munich

fossile Cairanoolithus Dinosauria
Struthiomimus altus complete reconstruction in the Rocky Mountain Dinosaur Resource Center, Woodland Park, Colorado
Taxons Struthiomimus

Struthiomimus altus complete reconstruction in the Rocky Mountain Dinosaur Resource Center, Woodland Park, Colorado

Dinosauria Struthiomimus
Dinosaur eggs (Dendroolithus sp.) from Kaoguo Formation, Henan, China, on display at the San Diego County Fair, California, USA.
Taxons Dendroolithus

Dinosaur eggs (Dendroolithus sp.) from Kaoguo Formation, Henan, China, on display at the San Diego County Fair, California, USA.

Chine États-Unis Dendroolithus Dinosauria +1
Drawing of lectoholotype skull BMNH R.3386 (desigated by Weishampel et al., 1993)[1][2] of Limnosaurus transsylvanicus NOPCSA 1900 (later renamed Telmatosaurus transsylvanicus), a basal hadrosaurid dinosaur from the Late Maastrichtian (latest Upper Cretaceous) Sanpetru Formation of West Central Romania.
Taxons Telmatosaurus

Drawing of lectoholotype skull BMNH R.3386 (desigated by Weishampel et al., 1993)[1][2] of Limnosaurus transsylvanicus NOPCSA 1900 (later renamed Telmatosaurus transsylvanicus), a basal hadrosaurid dinosaur from the Late Maastrichtian (latest Upper Cretaceous) Sanpetru Formation of West Central Romania.

dessin Roumanie Crétacé Maastrichtien +6
Magnoavipes sp. - dinosaur track from the Cretaceous of Colorado, USA. (replica; public display, Red Rocks Amphitheater visitor center, west of Denver, Colorado, USA)
Dinosaur Ridge, Colorado has numerous dinosaur fossils, including bones and tracks.  The most common track type at the site is Caririchnium leonardii, which was made by an iguanodontid dinosaur.  A less common track is this - a slender, three-toed print called Magnoavipes, which was made by a theropod dinosaur.
Stratigraphy: Dakota Sandstone, upper Lower Cretaceous

Provenance: eastern side of Dinosaur Ridge, Dakota Hogback, west of Denver, north-central Colorado, USA
Taxons Magnoavipes

Magnoavipes sp. - dinosaur track from the Cretaceous of Colorado, USA. (replica; public display, Red Rocks Amphitheater visitor center, west of Denver, Colorado, USA) Dinosaur Ridge, Colorado has numerous dinosaur fossils, including bones and tracks. The most common track type at the site is Caririchnium leonardii, which was made by an iguanodontid dinosaur. A less common track is this - a slender, three-toed print called Magnoavipes, which was made by a theropod dinosaur. Stratigraphy: Dakota Sandstone, upper Lower Cretaceous Provenance: eastern side of Dinosaur Ridge, Dakota Hogback, west of Denver, north-central Colorado, USA

os États-Unis Denver Crétacé +7
Otozoum tracks in the Dinosaur State Park and Arboretum, Rocky Hill, Connecticut, USA. The exhibit sign reads: "These large negative tracks were made by a heavy animal that walked on four toes and had a short stride. It may have been a prosauropod. All of these tracks have rare skin impressions. This specimen was removed from the Portland Quarry in 1896. Donated by Wesleyan University."
Taxons Otozoum

Otozoum tracks in the Dinosaur State Park and Arboretum, Rocky Hill, Connecticut, USA. The exhibit sign reads: "These large negative tracks were made by a heavy animal that walked on four toes and had a short stride. It may have been a prosauropod. All of these tracks have rare skin impressions. This specimen was removed from the Portland Quarry in 1896. Donated by Wesleyan University."

peau États-Unis Portland spécimen +3
Halisaurus mosasaur, Wyoming Dinosaur Center, Thermopolis / 2006
Taxons Halisaurus

Halisaurus mosasaur, Wyoming Dinosaur Center, Thermopolis / 2006

États-Unis Dinosauria Halisaurus
Cetiosaurus oxoniensis, "Rutland Dinosaur". New Walk Museum, Leicester. Tuesday, 17 July, 2012
Taxons Cetiosaurus

Cetiosaurus oxoniensis, "Rutland Dinosaur". New Walk Museum, Leicester. Tuesday, 17 July, 2012

musée Royaume-Uni Cetiosauria Dinosauria
Fossil bone of Procerosaurus exogyrarum, possible dinosaur from the Czech Republic. National Museum, Prague (2007).
Taxons Ponerosteus

Fossil bone of Procerosaurus exogyrarum, possible dinosaur from the Czech Republic. National Museum, Prague (2007).

os musée Tchéquie fossile +3
Fossil of Pinacosaurus, an ankylosaurian  dinosaur
Took the photo at Musee d'Histoire Naturelle, Brussels
Taxons Eopinacosaurus

Fossil of Pinacosaurus, an ankylosaurian dinosaur Took the photo at Musee d'Histoire Naturelle, Brussels

fossile Ankylosauria Dinosauria Eopinacosaurus +1
Reconstruction of Bissektipelta archibaldi an ankylosaurid dinosaur from the Late Cretaceous of Uzbekistan
Taxons Bissektipelta

Reconstruction of Bissektipelta archibaldi an ankylosaurid dinosaur from the Late Cretaceous of Uzbekistan

Ouzbékistan Crétacé Crétacé supérieur Ankylosauridae +2
Ornithischian dinosaur Stenopelix valdensis Meyer, 1857, holotype (GZG 741/2, formerly GPI Gö 741−2), from the Obernkirchen Sandstone (Early
Cretaceous: Berriasian), near Bückeburg, Niedersachsen, Germany. A. Large sandstone slab. B. Interpretative outline drawing of large latex cast (prepared
from large sandstone slab), showing majority of postcranial skeleton in dorsal view. C. Small sandstone slab. D. Interpretative outline drawing of small la−
tex cast (prepared from small sandstone slab), showing sacrum and caudals, pelvic region and partial hindlimbs in ventral view. For clarity elements in and
around the sacral region have not been labelled—these areas are shown in greater detail in Fig. 3. Roman numerals II–IV correspond to respective digits.

Abbreviations: mt, metatarsals; f, femur; ?, unidentified element.
Taxons Stenopelix

Ornithischian dinosaur Stenopelix valdensis Meyer, 1857, holotype (GZG 741/2, formerly GPI Gö 741−2), from the Obernkirchen Sandstone (Early Cretaceous: Berriasian), near Bückeburg, Niedersachsen, Germany. A. Large sandstone slab. B. Interpretative outline drawing of large latex cast (prepared from large sandstone slab), showing majority of postcranial skeleton in dorsal view. C. Small sandstone slab. D. Interpretative outline drawing of small la− tex cast (prepared from small sandstone slab), showing sacrum and caudals, pelvic region and partial hindlimbs in ventral view. For clarity elements in and around the sacral region have not been labelled—these areas are shown in greater detail in Fig. 3. Roman numerals II–IV correspond to respective digits. Abbreviations: mt, metatarsals; f, femur; ?, unidentified element.

dessin Allemagne Berriasien Crétacé +8
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Actualités

Certains dinosaures pouvaient s'élever comme des géants, jusqu'à devenir trop gros
os Dinosauria
Certains sauropodes plus petits pouvaient se tenir debout sur leurs pattes postérieures avec une facilité surprenante, leur donnant accès à une nourriture plus riche et un avantage défensif. Des simulations informatiques montrent que leurs os supportent mieux le stress que ceux de leurs parents plus grands. Cependant, à mesure qu’ils grandissaient, le poids rendait cette posture beaucoup plus difficile à maintenir. Ce qui a commencé comme une astuce utile dans la jeunesse est devenu une démarche stratégique plus limitée à l’âge adulte.
30/03/2026 sciencedaily ⚙ Traduction automatique
Des scientifiques ont recréé un nid de dinosaure pour résoudre un mystère vieux de 70 millions d'années
nid Dinosauria Oviraptor oiseau
Les scientifiques ont recréé un nid d'oviraptors grandeur nature pour comprendre comment ces dinosaures ont fait éclore leurs œufs. Leurs expériences ont montré que le parent ne pouvait probablement pas chauffer tous les œufs directement, ce qui signifie que la lumière du soleil jouait un rôle clé. Ce chauffage inégal pourrait faire éclore les œufs d’un même nid à des moments différents. Les résultats suggèrent que les oviraptors utilisaient une méthode d’incubation hybride contrairement aux oiseaux modernes.
19/03/2026 sciencedaily ⚙ Traduction automatique
Ces dinosaures avaient des ailes mais ne pouvaient pas voler
plume fossile Anchiornis Dinosauria oiseau
Certains dinosaures à plumes ont peut-être brièvement pris leur envol, pour y renoncer plus tard. En étudiant des fossiles rares avec des plumes préservées, les chercheurs ont découvert un indice surprenant caché dans les schémas de mue, révélant qu’Anchiornis ne pouvait probablement pas voler du tout. Au lieu du remplacement soigné et symétrique des plumes observé chez les oiseaux volants, ces dinosaures ont présenté une mue désordonnée et irrégulière, ce que seuls les animaux incapables de voler présentent.
18/03/2026 sciencedaily ⚙ Traduction automatique
Ce dinosaure de 2 livres réécrit ce que les scientifiques savent de l'évolution
fossile Alnashetri Alvarezsauria Dinosauria oiseau évolution squelette
Un squelette de dinosaure presque complet découvert en Patagonie aide les scientifiques à percer le mystère des alvarezsaures, un groupe étrange de dinosaures ressemblant à des oiseaux. Le fossile d'Alnashetri cerropoliciensis révèle que ces animaux sont devenus minuscules avant de développer leurs caractéristiques spécialisées ultérieures, telles que des bras tronqués et des adaptations mangeuses de fourmis. Pesant moins de deux livres, le dinosaure est l’un des plus petits connus d’Amérique du Sud.
10/03/2026 sciencedaily ⚙ Traduction automatique
Haolong: Beast of the Week
Haolong : Bête de la semaine
Chine Crétacé Crétacé inférieur juvénile spécimen Dinosauria Haolong
 Cette semaine, nous allons découvrir un dinosaure nouvellement décrit qui est si unique qu'il change complètement ce que nous pensions savoir sur la peau des dinosaures !  Entrez Haolong Dongi ! Haolong était un dinosaure herbivore qui vivait dans ce qui est aujourd'hui le Liaoning, en Chine, au début du Crétacé, il y a environ 112,5 millions d'années.  Le seul spécimen enregistré mesure environ 8 pieds (2,45 m) du bec à la queue, mais il était juvénile lorsqu'il est mort, l'espèce a donc probablement grandi.  Le nom du genre se traduit du chinois par "S
08/03/2026 prehistoricbeastoftheweek ⚙ Traduction automatique
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