os

Partie anatomique

68 image(s) · 40 Actualités

Galerie d'images

Title: The dinosaur book : the ruling reptiles and their relatives
Identifier: bookruli00colb (find matches)
Year: 1951 (1950s)
Authors: Colbert, Edwin H. (Edwin Harris), 1905-2001; Knight, Charles Robert, 1874-1953; American Museum of Natural History
Subjects: Dinosaurs; Reptiles, Fossil
Publisher: New York : Published for the American Museum of Natural History by McGraw-Hill
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image: 
'
Text Appearing After Image: 
bone A typical example of the parts usually found fossilized: portions of the skeleton of a small dinosaur from Mongolia A.M.N.H. photographs One of the rarest fossils: a dino- saur egg over 60 million years old, compared with a hen's egg (left) and an alligator egg (right)

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Taxons Oviraptor

Title: The dinosaur book : the ruling reptiles and their relatives Identifier: bookruli00colb (find matches) Year: 1951 (1950s) Authors: Colbert, Edwin H. (Edwin Harris), 1905-2001; Knight, Charles Robert, 1874-1953; American Museum of Natural History Subjects: Dinosaurs; Reptiles, Fossil Publisher: New York : Published for the American Museum of Natural History by McGraw-Hill Contributing Library: American Museum of Natural History Library Digitizing Sponsor: IMLS / LSTA / METRO View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: ' Text Appearing After Image: bone A typical example of the parts usually found fossilized: portions of the skeleton of a small dinosaur from Mongolia A.M.N.H. photographs One of the rarest fossils: a dino- saur egg over 60 million years old, compared with a hen's egg (left) and an alligator egg (right) Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

os musée Mongolie fossile +4
Title: The dinosaur book : the ruling reptiles and their relatives
Identifier: bookruli00colb (find matches)
Year: 1951 (1950s)
Authors: Colbert, Edwin H. (Edwin Harris), 1905-2001; Knight, Charles Robert, 1874-1953; American Museum of Natural History
Subjects: Dinosaurs; Reptiles, Fossil
Publisher: New York : Published for the American Museum of Natural History by McGraw-Hill
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image: 
'
Text Appearing After Image: 
bone A typical example of the parts usually found fossilized: portions of the skeleton of a small dinosaur from Mongolia A.M.N.H. photographs One of the rarest fossils: a dino- saur egg over 60 million years old, compared with a hen's egg (left) and an alligator egg (right)

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Taxons Fenestrosaurus

Title: The dinosaur book : the ruling reptiles and their relatives Identifier: bookruli00colb (find matches) Year: 1951 (1950s) Authors: Colbert, Edwin H. (Edwin Harris), 1905-2001; Knight, Charles Robert, 1874-1953; American Museum of Natural History Subjects: Dinosaurs; Reptiles, Fossil Publisher: New York : Published for the American Museum of Natural History by McGraw-Hill Contributing Library: American Museum of Natural History Library Digitizing Sponsor: IMLS / LSTA / METRO View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: ' Text Appearing After Image: bone A typical example of the parts usually found fossilized: portions of the skeleton of a small dinosaur from Mongolia A.M.N.H. photographs One of the rarest fossils: a dino- saur egg over 60 million years old, compared with a hen's egg (left) and an alligator egg (right) Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

os musée Mongolie fossile +4
Montanoceratops cerorhynchus (Brown & Schlaikjer, 1942) - fossil ceratopsian dinosaur skeleton from the Cretaceous of Montana, USA. (MOR 542, Museum of the Rockies, Bozeman, Montana, USA)
The species name is sometimes incorrectly spelled "cerorhynchos".  The original publication spells it "cerorhynchus".  The genus name is sometimes incorrectly spelled "Montanaceratops".
Ceratopsians are the "horned dinosaurs".  They were large, quadrupedal, herbivorous dinosaurs having a beaked skull and a frill - an extension of bone behind the skull that partially covered the neck.  Ceratopsian dinosaurs are known from the Jurassic and Cretaceous.  The last members of the group died out at the Cretaceous-Tertiary boundary, 65 million years ago.
This is a partial skeleton of a juvenile Montanoceratops, a ceratopsian from the near-latest Cretaceous of western North America.  This type of ceratopsian lacked facial horns.


From exhibit signage:
Sixty-eight million years ago, when the horned dinosaurs Triceratops and Torosaurus inhabited the coastal plain near the inland ocean, primitive "horned" dinosaurs named Montanoceratops lived in uplands near the young Rocky Mountains.  These little protoceratopsians fed on plants with slicing teeth and narrow beaks similar to their giant three-horned relatives.


Classification: Animalia, Chordata, Vertebrata, Reptilia, Archosauria, Dinosauria, Ornithischia, Marginocephalia, Ceratopsia, Leptoceratopsidae
Stratigraphy: St. Mary River Formation, Maastrichtian Stage, Upper Cretaceous
Locality: Little Rocky Coulee, north of the town of Cut Bank, eastern Glacier County, northwestern Montana, USA


Info. at:

en.wikipedia.org/wiki/Montanoceratops
Taxons Montanoceratops

Montanoceratops cerorhynchus (Brown & Schlaikjer, 1942) - fossil ceratopsian dinosaur skeleton from the Cretaceous of Montana, USA. (MOR 542, Museum of the Rockies, Bozeman, Montana, USA) The species name is sometimes incorrectly spelled "cerorhynchos". The original publication spells it "cerorhynchus". The genus name is sometimes incorrectly spelled "Montanaceratops". Ceratopsians are the "horned dinosaurs". They were large, quadrupedal, herbivorous dinosaurs having a beaked skull and a frill - an extension of bone behind the skull that partially covered the neck. Ceratopsian dinosaurs are known from the Jurassic and Cretaceous. The last members of the group died out at the Cretaceous-Tertiary boundary, 65 million years ago. This is a partial skeleton of a juvenile Montanoceratops, a ceratopsian from the near-latest Cretaceous of western North America. This type of ceratopsian lacked facial horns. From exhibit signage: Sixty-eight million years ago, when the horned dinosaurs Triceratops and Torosaurus inhabited the coastal plain near the inland ocean, primitive "horned" dinosaurs named Montanoceratops lived in uplands near the young Rocky Mountains. These little protoceratopsians fed on plants with slicing teeth and narrow beaks similar to their giant three-horned relatives. Classification: Animalia, Chordata, Vertebrata, Reptilia, Archosauria, Dinosauria, Ornithischia, Marginocephalia, Ceratopsia, Leptoceratopsidae Stratigraphy: St. Mary River Formation, Maastrichtian Stage, Upper Cretaceous Locality: Little Rocky Coulee, north of the town of Cut Bank, eastern Glacier County, northwestern Montana, USA Info. at: en.wikipedia.org/wiki/Montanoceratops

os musée États-Unis Crétacé +10
Muttaburrasaurus
The plants, animals and climate of the Australian continent have changed dramatically over long periods of time. Imagine this giant creature roaming the luxuriant wet forests that covered parts of the continent in the Cretaceous period, about 100-110 million years ago. The Muttaburrasaurus ambled along on all four legs or stood on its hind legs. Its large teeth were well adapted to eat tough vegetation such as the leathery foliage of the evergreen forests of Araucaria trees, ancient relatives of the bunya pine of south-eastern Queensland.
In 1963, grazier Doug Langdon discovered the fossilised bones of a dinosaur on his property near Muttaburra in central-west Queensland. It was one of the most complete dinosaur skeletons found in Australia. The bones belonged to a new species of ornithopod and palaeontologists named it Muttaburrasaurus langdoni.

Cast of Muttaburresaurus langdoni 1987 made by Queensland Museum, Brisbane National Museum of Australia
Taxons Muttaburrasaurus

Muttaburrasaurus The plants, animals and climate of the Australian continent have changed dramatically over long periods of time. Imagine this giant creature roaming the luxuriant wet forests that covered parts of the continent in the Cretaceous period, about 100-110 million years ago. The Muttaburrasaurus ambled along on all four legs or stood on its hind legs. Its large teeth were well adapted to eat tough vegetation such as the leathery foliage of the evergreen forests of Araucaria trees, ancient relatives of the bunya pine of south-eastern Queensland. In 1963, grazier Doug Langdon discovered the fossilised bones of a dinosaur on his property near Muttaburra in central-west Queensland. It was one of the most complete dinosaur skeletons found in Australia. The bones belonged to a new species of ornithopod and palaeontologists named it Muttaburrasaurus langdoni. Cast of Muttaburresaurus langdoni 1987 made by Queensland Museum, Brisbane National Museum of Australia

os musée Australie Crétacé +5
Illustration of the holotype frontal bone of Albertavenator curriei TMP 1993.105.0001 in dorsal view. Scale bar is 5mm.
Taxons Albertavenator

Illustration of the holotype frontal bone of Albertavenator curriei TMP 1993.105.0001 in dorsal view. Scale bar is 5mm.

os écaille holotype Albertavenator
Lower jaw, arm bone, and leg bone (LACM 128258 and LACM 120478) of Fruitadens haagarorum on display at the Natural History Museum of Los Angeles County.
Taxons Fruitadens

Lower jaw, arm bone, and leg bone (LACM 128258 and LACM 120478) of Fruitadens haagarorum on display at the Natural History Museum of Los Angeles County.

os musée Fruitadens
Diamantinasaurus matildae gen. et sp. nov. (AODF 603)
A. Right side
B. Left side
(both silhouettes with sketched in bone parts of the material currently known at publishing date; scale bars: 5 x 5 = 25 m; complemented with height data here)
Taxons Diamantinasaurus

Diamantinasaurus matildae gen. et sp. nov. (AODF 603) A. Right side B. Left side (both silhouettes with sketched in bone parts of the material currently known at publishing date; scale bars: 5 x 5 = 25 m; complemented with height data here)

os écaille musée Diamantinasauria +1
* Wintonotitan wattsi gen. et sp. nov. (QMF 7292)
(Silhouette with sketched in bone parts of the material currently known at publishing date; scale bar: size unknown — not mentioned in original source)
Taxons Wintonotitan

* Wintonotitan wattsi gen. et sp. nov. (QMF 7292) (Silhouette with sketched in bone parts of the material currently known at publishing date; scale bar: size unknown — not mentioned in original source)

os écaille musée Dinosauria +1
Reconstruction and restoration of the skull of Eolambia.

(A) Skull reconstruction of Eolambia in left lateral view by the lead author. Bones in white are unknown, bones in dark grey are based primarily upon the adult holotype (CEUM 9758) or paratype (CEUM 5212), and bones in light grey are based primarily upon juvenile elements from the Eo2 and WS8 bonebeds. Sutures and points of contact between bones are marked in black. Scale bar equals 10 cm; scale is calibrated with the dentary of CEUM 9758. (B) Life restoration of the head of Eolambia by Lukas Panzarin. Abbreviations: an, angular; d, dentary; f, frontal; j, jugal; l, lacrimal; mx, maxilla; na, nasal; pd, predentary; pmx, premaxilla; po, postorbital; prf, prefrontal; q, quadrate; qj, quadratojugal; sa, surangular; sq, squamosal.
Taxons Eolambia

Reconstruction and restoration of the skull of Eolambia. (A) Skull reconstruction of Eolambia in left lateral view by the lead author. Bones in white are unknown, bones in dark grey are based primarily upon the adult holotype (CEUM 9758) or paratype (CEUM 5212), and bones in light grey are based primarily upon juvenile elements from the Eo2 and WS8 bonebeds. Sutures and points of contact between bones are marked in black. Scale bar equals 10 cm; scale is calibrated with the dentary of CEUM 9758. (B) Life restoration of the head of Eolambia by Lukas Panzarin. Abbreviations: an, angular; d, dentary; f, frontal; j, jugal; l, lacrimal; mx, maxilla; na, nasal; pd, predentary; pmx, premaxilla; po, postorbital; prf, prefrontal; q, quadrate; qj, quadratojugal; sa, surangular; sq, squamosal.

os écaille holotype juvénile +2
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
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
1 2 3 4 5

Actualités

Des dés en os anciens révèlent 12 000 ans d'histoire du jeu en Amérique
os jeu culture étude
Il y a plus de 12 000 ans, les chasseurs-cueilleurs amérindiens fabriquaient et utilisaient déjà des dés, des milliers d’années avant que des outils similaires n’apparaissent ailleurs. Ces « lots binaires » d’os agissaient comme des pièces de monnaie primitives, produisant des résultats aléatoires pour les jeux de hasard. Une nouvelle étude montre qu’il ne s’agissait pas d’objets accidentels mais d’outils soigneusement conçus et utilisés dans de nombreuses régions et cultures.
02/04/2026 sciencedaily-fossils ⚙ Traduction automatique
Les scientifiques ont trouvé un bébé dinosaure caché dans la roche et il est étonnamment mignon
os dessin Corée du Sud Dinosauria Doolysaurus tomographie découverte crâne
Des scientifiques ont découvert un bébé dinosaure rare en Corée du Sud et l'ont baptisé Doolysaurus, en hommage à un célèbre personnage de dessin animé. Grâce à des tomodensitogrammes de pointe, ils ont découvert des os cachés, notamment un crâne, dans la roche beaucoup plus rapidement que les méthodes traditionnelles. Le jeune dinosaure, peut-être duveteux et ressemblant à un agneau, avait même des calculs gastriques révélant qu'il mangeait un mélange de plantes et de petits animaux. Cette découverte suggère que de nombreux autres dinosaures pourraient encore être cachés dans les roches coréennes.
01/04/2026 sciencedaily ⚙ Traduction automatique
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
Il a fallu 40 ans au T. rex pour atteindre sa taille réelle, selon une étude
os croissance prédateur spécimen Tyrannosaurus étude
Le Tyrannosaurus rex a peut-être mis beaucoup plus de temps à grandir que les scientifiques ne le pensaient autrefois. En analysant les anneaux de croissance des os fossilisés des pattes de 17 spécimens de tyrannosaures et en utilisant de nouvelles méthodes statistiques, les chercheurs ont découvert que le célèbre prédateur avait probablement mis environ 40 ans pour atteindre sa taille maximale, soit environ huit tonnes, au lieu des 25 ans précédemment estimés.
05/03/2026 sciencedaily ⚙ Traduction automatique
L'ADN ancien résout le mystère vieux de 12 000 ans d'un trouble génétique rare de la croissance
os ADN croissance Italie découverte génétique
Un double enterrement de la période glaciaire en Italie a donné lieu à une révélation génétique étonnante. L'ADN d'une mère et d'une fille ayant vécu il y a plus de 12 000 ans montre que la plus jeune souffrait d'un trouble de croissance héréditaire rare, confirmé par des mutations dans un gène clé de la croissance osseuse. Sa mère portait une version plus douce de la même mutation. Cette découverte résout non seulement un mystère de longue date, mais prouve également que les maladies génétiques rares remontent loin dans la préhistoire.
17/02/2026 sciencedaily ⚙ Traduction automatique
1 2 3 4 5 6 7 8