os

Partie anatomique

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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

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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
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Actualités

Ce serpent vieux de 100 millions d'années avait des pattes postérieures et un os perdu qui change l'évolution
os membre prédateur Argentine fossile évolution
Il y a près de 100 millions d’années, les serpents n’étaient pas les créatures élégantes et sans membres que nous connaissons aujourd’hui : ils avaient encore des pattes postérieures et même une pommette qui ont presque disparu chez les espèces modernes. Un fossile remarquablement préservé de Najash rionegrina d'Argentine a remodelé la façon dont les scientifiques pensent aux origines des serpents, suggérant que les premiers serpents étaient de grands prédateurs à la bouche large plutôt que de minuscules fouisseurs.
24/04/2026 sciencedaily ⚙ Traduction automatique
Ces minuscules fossiles de dinosaures ont trompé les scientifiques pendant 20 ans
armure os croissance fossile Ankylosauria Dinosauria découverte
De minuscules fossiles de dinosaures qui ont intrigué les scientifiques pendant plus de 20 ans ont enfin révélé leur véritable identité. Plutôt que d’appartenir à une espèce miniature, ce sont en réalité des bébés ankylosaures, certains âgés de moins d’un an, y compris un possible nouveau-né. En étudiant les schémas de croissance osseuse, les chercheurs ont confirmé que ces jeunes dinosaures n’étaient pas encore devenus des adultes de grande taille. La découverte apporte un nouvel éclairage sur la façon dont les ankylosaures se sont développés, montrant qu'ils ont commencé à développer une armure étonnamment tôt.
21/04/2026 sciencedaily ⚙ Traduction automatique
Les scientifiques pensaient qu'il s'agissait d'un jeune T. rex. Ils avaient tort
os croissance prédateur fossile juvénile Dinosauria Nanotyrannus
Un mystère de longue date sur les dinosaures pourrait enfin être résolu : Nanotyrannus, autrefois considéré comme un simple T. rex adolescent, semble avoir été une espèce distincte après tout. Les scientifiques ont analysé un minuscule os de la gorge du fossile original et ont découvert des schémas de croissance montrant que l'animal était déjà mature et non un géant juvénile en devenir. Ce petit prédateur, environ la moitié de la taille d'un T. rex adulte, errait probablement aux côtés de son célèbre cousin, ajoutant une nouvelle couche de complexité à l'écosystème préhistorique.
16/04/2026 sciencedaily ⚙ Traduction automatique
Les Néandertaliens auraient chassé et mangé des étrangers, selon une étude effrayante sur le cannibalisme
os proie Belgique comportement découverte étude
Une grotte en Belgique a révélé des preuves troublantes selon lesquelles les Néandertaliens cannibalisaient sélectivement les étrangers, en se concentrant sur les femmes et les enfants. Les victimes n’appartenaient pas au groupe local et semblent avoir été traitées comme des proies, les os étant découpés pour obtenir de la viande et de la moelle. Cela suggère que le comportement n’était pas rituel, mais pratique – ou peut-être lié à un conflit intergroupe. Cette découverte dresse un tableau plus sombre et plus complexe de la vie des Néandertaliens au cours de leurs derniers millénaires.
11/04/2026 sciencedaily-fossils ⚙ Traduction automatique
Des abeilles anciennes trouvées nichant à l’intérieur d’os fossiles lors d’une découverte d’une grotte rare
os mâchoire nid proie fossile découverte
Il y a des milliers d'années, dans une grotte d'Hispaniola, une chaîne d'événements inhabituelle a laissé derrière elle un trésor scientifique rare : des abeilles nichant dans des os fossilisés. Après que des chouettes effraies géantes aient amené à plusieurs reprises des proies comme des hutias dans la grotte, leurs restes se sont accumulés dans des chambres riches en limon, créant un étrange environnement souterrain. Plus tard, les abeilles fouisseuses ont profité des sédiments mous et ont même réutilisé de minuscules cavités dans des mâchoires et des os fossilisés comme nids prêts à l'emploi, les recouvrant d'un revêtement lisse et imperméable.
03/04/2026 sciencedaily ⚙ Traduction automatique
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