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Dinosauria

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Reconstruction of Tuebingosaurus maierfritzorum gen. et sp. nov. as a quadruped dinosaur, using the outline of Riojasaurus as a base ‒ next to the silhouette of Friedrich von Huene. The drawing of the bones is based on and modified from the original illustrations of specimen “GPIT IV” in von Huene (1932, pl. 38) that have been replicated in the literature. The right fibula is marked in grey as it was found nearby with similar measurements to the left fibula and has been assumed to be part of the same individual.
Taxons Tuebingosaurus

Reconstruction of Tuebingosaurus maierfritzorum gen. et sp. nov. as a quadruped dinosaur, using the outline of Riojasaurus as a base ‒ next to the silhouette of Friedrich von Huene. The drawing of the bones is based on and modified from the original illustrations of specimen “GPIT IV” in von Huene (1932, pl. 38) that have been replicated in the literature. The right fibula is marked in grey as it was found nearby with similar measurements to the left fibula and has been assumed to be part of the same individual.

os dessin spécimen Dinosauria +2
Reconstruction of Bravasaurus arreirosorum a titanosaur dinosaur from the Late Cretaceous of Argentina
Taxons Bravasaurus

Reconstruction of Bravasaurus arreirosorum a titanosaur dinosaur from the Late Cretaceous of Argentina

Argentine Crétacé Crétacé supérieur Bravasaurus +2
Shri rapax 3D skeletal reconstruction by Alex Pritchard of Dinosaur Skeletons.
Taxons Shri

Shri rapax 3D skeletal reconstruction by Alex Pritchard of Dinosaur Skeletons.

Dinosauria Shri squelette
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
Line diagram of the holotype specimen (ZPAL MgD-I/117) of the protoceratopsid Breviceratops kozlowskii. Based on Maryańska & Osmólska 1975,[1] and Czepiński 2019.[2]
References

↑ (1975). "Protoceratopsidae (Dinosauria) of Asia". Palaeontologia Polonica 33: 134−143. Archived from the original on 2018-09-21. Retrieved on 2021-07-25.

↑ (2019). "Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert". Historical Biology: 1−28. DOI:10.1080/08912963.2019.1593404. Archived from the original on 2021-07-08. Retrieved on 2021-07-25.
Taxons Breviceratops

Line diagram of the holotype specimen (ZPAL MgD-I/117) of the protoceratopsid Breviceratops kozlowskii. Based on Maryańska & Osmólska 1975,[1] and Czepiński 2019.[2] References ↑ (1975). "Protoceratopsidae (Dinosauria) of Asia". Palaeontologia Polonica 33: 134−143. Archived from the original on 2018-09-21. Retrieved on 2021-07-25. ↑ (2019). "Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert". Historical Biology: 1−28. DOI:10.1080/08912963.2019.1593404. Archived from the original on 2021-07-08. Retrieved on 2021-07-25.

ontogenèse Crétacé Crétacé supérieur holotype +5
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
Dinosaur's Museum in Savannakhet, Laos
Taxons Tangvayosaurus

Dinosaur's Museum in Savannakhet, Laos

musée Laos Dinosauria Tangvayosaurus
Caririchnium leonardii - 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.  The large, wide, three-toed print was produced by a hindfoot.
Stratigraphy: Dakota Sandstone, upper Lower Cretaceous

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

Caririchnium leonardii - 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. The large, wide, three-toed print was produced by a hindfoot. 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 +6
Elongatoolithus excellens in the exhibition "Dinosaures. Tresors del desert de Gobi" ("Dinosaurs. Treasures of Gobi Desert") in CosmoCaixa, Barcelona.
Taxons Elongatoolithus

Elongatoolithus excellens in the exhibition "Dinosaures. Tresors del desert de Gobi" ("Dinosaurs. Treasures of Gobi Desert") in CosmoCaixa, Barcelona.

Dinosauria Elongatoolithus
Elangatoolithidae fossil dinosaur eggs, from China. Exhibit in the Academy of Natural Sciences, 1900 Benjamin Franklin Parkway, Philadelphia, Pennsylvania, USA. Photography was permitted in this area of the museum without restrictions.
Taxons Elongatoolithidae

Elangatoolithidae fossil dinosaur eggs, from China. Exhibit in the Academy of Natural Sciences, 1900 Benjamin Franklin Parkway, Philadelphia, Pennsylvania, USA. Photography was permitted in this area of the museum without restrictions.

musée Chine États-Unis fossile +2
Fossil specimen of Ornithomimus sp. (TMP 1995.110.1), Royal Tyrrell Museum. This specimen was recovered from the middle Dinosaur Park Formation of Alberta, Canada.
Taxons Ornithomimidae

Fossil specimen of Ornithomimus sp. (TMP 1995.110.1), Royal Tyrrell Museum. This specimen was recovered from the middle Dinosaur Park Formation of Alberta, Canada.

musée Canada Allemagne Dinosaur Park +6
Uses https://commons.wikimedia.org/wiki/File:Dromaeosaurus_in_Canadian_Museum_of_Nature.jpg
File:Alaskan_troodont_Perot_Museum.jpg
File:Unenlagia_fossils.jpg
File:Talos_sampsoni.png
https://en.wikipedia.org/wiki/File:Velociraptor_Wyoming_Dinosaur_Center.jpg
https://en.wikipedia.org/wiki/Saurornitholestes
File:Buitreraptor-Deinonychus.jpg

File:Dakotaraptor_lateral_Wiki.jpg
Taxons Deinonychosauria

Uses https://commons.wikimedia.org/wiki/File:Dromaeosaurus_in_Canadian_Museum_of_Nature.jpg File:Alaskan_troodont_Perot_Museum.jpg File:Unenlagia_fossils.jpg File:Talos_sampsoni.png https://en.wikipedia.org/wiki/File:Velociraptor_Wyoming_Dinosaur_Center.jpg https://en.wikipedia.org/wiki/Saurornitholestes File:Buitreraptor-Deinonychus.jpg File:Dakotaraptor_lateral_Wiki.jpg

musée fossile Buitreraptor Dakotaraptor +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
Six maniraptoran dinosaurs (top to bottom):  the Zamyn Khondt oviraptorosaur, Sinornithosaurus, the Alaskan troodontid, Patagonykus, a short-tailed albatross, Nothronychus
Taxons Maniraptora

Six maniraptoran dinosaurs (top to bottom): the Zamyn Khondt oviraptorosaur, Sinornithosaurus, the Alaskan troodontid, Patagonykus, a short-tailed albatross, Nothronychus

Coelurosauria Dinosauria Maniraptora Nothronychus +4
Map of Cretaceous-aged dinosaur fossil localities of Mongolia.
Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].
Formations Baynshire

Map of Cretaceous-aged dinosaur fossil localities of Mongolia. Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].

Mongolie Campanien Cénomanien Crétacé +8
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Actualités

Parasaurolophus: Beast of the Week
Parasaurolophus : Bête de la semaine
crête Crétacé Crétacé supérieur spécimen Canardia Dinosauria Parasaurolophus
Cette semaine, nous allons nous intéresser à un dinosaure à bec de canard très populaire.  Dites bonjour à Parasaurolophus !  Le parasaurolophus était un herbivore qui vivait dans ce qui est aujourd'hui l'Amérique du Nord à la fin du Crétacé, il y a environ 77 à 73 millions d'années.  Le parasaurolophus mesurait environ 9,1 mètres de long du bec à la queue, mais certains spécimens incomplets montrent qu'ils étaient un peu plus grands.  Parasaurolophus est surtout connu pour sa longue crête incurvée qui s'est développée à l'arrière de sa tête, givi
21/12/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
Des scientifiques ont découvert une horloge cachée dans des coquilles d'œufs de dinosaures
fossile Dinosauria
Les chercheurs ont découvert que les coquilles d’œufs fossilisées de dinosaures contiennent une horloge naturelle qui peut révéler l’époque où vivaient les dinosaures. La technique fournit des âges étonnamment précis et pourrait révolutionner la façon dont les sites fossilifères du monde entier sont datés.
21/12/2025 sciencedaily ⚙ Traduction automatique
Des monstres marins géants vivaient dans les rivières à la fin de l'ère des dinosaures
dent alimentation prédateur Dinosauria Mosasaurus isotope
Les mosasaures géants, autrefois considérés comme des prédateurs strictement océaniques, ont peut-être passé leur dernier chapitre à rôder dans les rivières d'eau douce aux côtés de dinosaures et de crocodiles. Une dent massive trouvée dans le Dakota du Nord, analysée à l'aide de techniques isotopiques chimiques, révèle que certains mosasaures se sont adaptés aux systèmes fluviaux à mesure que les mers se rafraîchissaient progressivement vers la fin de l'ère des dinosaures. Ces énormes reptiles, peut-être aussi longs qu'un bus, semblent avoir chassé près de la surface, se nourrissant peut-être même de dinosaures noyés.
15/12/2025 sciencedaily ⚙ Traduction automatique
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
Edmontosaurus: Beast of the Week
Edmontosaurus : la bête de la semaine
Crétacé Crétacé supérieur Canardia Dinosauria Edmontosaurus Hadrosauria
Aujourd’hui, nous examinons l’un des dinosaures à bec de canard les plus grands et les mieux étudiés.  Entrez Edmontosaure!  Edmontosaurus annectens dans les aquarelles de Christopher DiPiazza.Edmontosaurus était un dinosaure hadrosaure (« à bec de canard ») qui pouvait atteindre au moins 39 pieds (12 mètres) de long du bec à la queue et qui vivait à la fin du Crétacé dans ce qui est aujourd'hui l'ouest de l'Amérique du Nord.  Il existe actuellement deux espèces reconnues dans le genre, Edmontosaurus regalis et Edmontosaurus annect.
29/11/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
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