os

Partie anatomique

68 image(s) · 40 Actualités

Galerie d'images

Figure description from paper: "Fig. 3 Wimanius odontopalatus Maisch & Matzke, 1998, holotype, GPIT-PV-76272. Photos courtesy of G. Bindellini (Milano). a The complete holotype. b Detail showing a part of the dentition. c Disarticulated bones from the posterior part of the skull
Taxons Wimanius

Figure description from paper: "Fig. 3 Wimanius odontopalatus Maisch & Matzke, 1998, holotype, GPIT-PV-76272. Photos courtesy of G. Bindellini (Milano). a The complete holotype. b Detail showing a part of the dentition. c Disarticulated bones from the posterior part of the skull

os description holotype Wimaniidae +2
Figure description from paper: "Fig. 3 Wimanius odontopalatus Maisch & Matzke, 1998, holotype, GPIT-PV-76272. Photos courtesy of G. Bindellini (Milano). a The complete holotype. b Detail showing a part of the dentition. c Disarticulated bones from the posterior part of the skull
Taxons Wimaniidae

Figure description from paper: "Fig. 3 Wimanius odontopalatus Maisch & Matzke, 1998, holotype, GPIT-PV-76272. Photos courtesy of G. Bindellini (Milano). a The complete holotype. b Detail showing a part of the dentition. c Disarticulated bones from the posterior part of the skull

os description holotype Wimaniidae +2
Partial skull and anterior cervical vertebrae of unidentified pliosaurid plesiosaurian (MPPL 18797) from the uppermost Callovian–middle Oxfordian of Kaberlaba (Asiago, Italy), in left lateral view. Photograph (A) and explanatory drawing (B). White, preserved bone surfaces; dark grey, preserved margins of skull fenestrae; light grey, eroded bone surface; cross hatching, broken bone.
Taxons Anguanax

Partial skull and anterior cervical vertebrae of unidentified pliosaurid plesiosaurian (MPPL 18797) from the uppermost Callovian–middle Oxfordian of Kaberlaba (Asiago, Italy), in left lateral view. Photograph (A) and explanatory drawing (B). White, preserved bone surfaces; dark grey, preserved margins of skull fenestrae; light grey, eroded bone surface; cross hatching, broken bone.

os dessin Italie Callovien +6
Bone mapping of the skeleton of Plesiopharos moelensis gen. et sp. nov. (ML2302) from the Sinemurian (Lower Jurassic) of São Pedro de Moel (Leiria, Portugal). A. Bones distribution map of the three original extracted blocks (1, 2 and 3) containing ML2302. Arrows with question marks represent that the joining relationship between the blocks is unknown. B. Photographs of the five sub-blocks (1A, 1B, 2C, 2D, and 3E) after preparation works.
Taxons Plesiopharos

Bone mapping of the skeleton of Plesiopharos moelensis gen. et sp. nov. (ML2302) from the Sinemurian (Lower Jurassic) of São Pedro de Moel (Leiria, Portugal). A. Bones distribution map of the three original extracted blocks (1, 2 and 3) containing ML2302. Arrows with question marks represent that the joining relationship between the blocks is unknown. B. Photographs of the five sub-blocks (1A, 1B, 2C, 2D, and 3E) after preparation works.

os Portugal Jurassique Sinémurien +2
Outline and overview of the connected slabs TWE 480000454-A, -B, -D, -E, and -M.
TWE 480000454-A shows a single plate-like girdle bone (is). TWE 480000454-B contains
disarticulated vertebrae from the posterior presacral and sacral region (c1-11, na1-3),
fragments of dorsal ribs (dr1, dr2), elements of gastral ribs (unlabelled), the second ischium
(is), the round, plate-like pubis (pu), and three bones, most likely representing sacral- or
caudal ribs (?cr1-3). TWE 480000454-D, -E, and -M mainly contain dorsal ribs (dr3-9) and
elements of gastral ribs as well as two more isolated halves of neural arches (na4, na5), and a

caudal rib (cr1).
Taxons Pararcus

Outline and overview of the connected slabs TWE 480000454-A, -B, -D, -E, and -M. TWE 480000454-A shows a single plate-like girdle bone (is). TWE 480000454-B contains disarticulated vertebrae from the posterior presacral and sacral region (c1-11, na1-3), fragments of dorsal ribs (dr1, dr2), elements of gastral ribs (unlabelled), the second ischium (is), the round, plate-like pubis (pu), and three bones, most likely representing sacral- or caudal ribs (?cr1-3). TWE 480000454-D, -E, and -M mainly contain dorsal ribs (dr3-9) and elements of gastral ribs as well as two more isolated halves of neural arches (na4, na5), and a caudal rib (cr1).

os Pararcus
A color-coded skull diagram of Palatodonta bleekeri, mostly based on a diagram published by Neenan et al. (2013). Some interpretations (such as the presence of a quadratojugal) are based on Maisch (2020). Depicted in left lateral view, mirrored from the original specimen as preserved in right lateral view. Dotted lines indicate missing bone.
Taxons Palatodonta

A color-coded skull diagram of Palatodonta bleekeri, mostly based on a diagram published by Neenan et al. (2013). Some interpretations (such as the presence of a quadratojugal) are based on Maisch (2020). Depicted in left lateral view, mirrored from the original specimen as preserved in right lateral view. Dotted lines indicate missing bone.

os spécimen Palatodonta crâne
Cuspicephalus scarfi MJMG K1918. A, Original skull on slab of mudstone, Lacking the mandible and dentition; B, outline diagram of preserved bone. Light grey is bone, dark grey is fibrous bone of sagittal crest, black is dental alveoli where unambiguous; C restoration of skull outline, with hypothetical lower jaw. Scale bar = 50 mm. Abbreviation: j, jugal; naof, nasoantorbital fenestra; m, maxilla; o, orbit; pm, premaxilla; q, quadrate; sc,

sagittal crest; sq, squamosal; tr np, trace of nasal process.
Taxons Cuspicephalus

Cuspicephalus scarfi MJMG K1918. A, Original skull on slab of mudstone, Lacking the mandible and dentition; B, outline diagram of preserved bone. Light grey is bone, dark grey is fibrous bone of sagittal crest, black is dental alveoli where unambiguous; C restoration of skull outline, with hypothetical lower jaw. Scale bar = 50 mm. Abbreviation: j, jugal; naof, nasoantorbital fenestra; m, maxilla; o, orbit; pm, premaxilla; q, quadrate; sc, sagittal crest; sq, squamosal; tr np, trace of nasal process.

os crête écaille Cuspicephalus +1
Photographs of Melkamter pateko (MPEF-PV 11530), visible in medial views on the main block (1) with inset of the tooth (1B) and counterslab (2);. Rendered CT scan detail images (dashed areas represent visible bone that was too thin to be captured by CT scan) of the cranial fragment (1A), manual metacarpal (1C) and dorsal vertebrae (1D–F). Abbreviations: a = alveoli; if = infratemporal fenestra; j = jugal; l = lacrimal; m = maxilla; o = orbit; naof = Nnasoantorbital fenestra; np = nasal process; pm = premaxilla; po = postorbital; q = quadrate; qj = quadratojugal; s = squamosal; t = tooth; vas = vestigial ascending process.
Taxons Melkamter

Photographs of Melkamter pateko (MPEF-PV 11530), visible in medial views on the main block (1) with inset of the tooth (1B) and counterslab (2);. Rendered CT scan detail images (dashed areas represent visible bone that was too thin to be captured by CT scan) of the cranial fragment (1A), manual metacarpal (1C) and dorsal vertebrae (1D–F). Abbreviations: a = alveoli; if = infratemporal fenestra; j = jugal; l = lacrimal; m = maxilla; o = orbit; naof = Nnasoantorbital fenestra; np = nasal process; pm = premaxilla; po = postorbital; q = quadrate; qj = quadratojugal; s = squamosal; t = tooth; vas = vestigial ascending process.

os dent Melkamter tomographie
Skeletal reconstruction of the Spectrovenator ragei holotype (MZSP-PV 833). Recovered bones in blue.
Taxons Spectrovenator

Skeletal reconstruction of the Spectrovenator ragei holotype (MZSP-PV 833). Recovered bones in blue.

os holotype Spectrovenator
Abelisaurid theropod Kryptops palaios gen. et sp. nov. MNN GAD1−1 from the Lower Cretaceous Elrhaz Formation of Niger. Left maxilla in lateral

view; stereopair (A) and line drawing (B). Cross−hatching indicates broken bone; dashed lines indicate estimated edges.
Taxons Kryptops

Abelisaurid theropod Kryptops palaios gen. et sp. nov. MNN GAD1−1 from the Lower Cretaceous Elrhaz Formation of Niger. Left maxilla in lateral view; stereopair (A) and line drawing (B). Cross−hatching indicates broken bone; dashed lines indicate estimated edges.

os dessin Niger Crétacé +3
Reconstruction of the Abelisaurus skull with original bones of the holotype. Museo Provincial Carlos Ameghino, Cipolletti, Argentina. Scale = 10 cm
Taxons Abelisaurus

Reconstruction of the Abelisaurus skull with original bones of the holotype. Museo Provincial Carlos Ameghino, Cipolletti, Argentina. Scale = 10 cm

os écaille Argentine holotype +3
Reconstructed skull of Duriavenator hesperis showing known material (white) of the holotype and only known specimen. Unknown bones based on related Eustreptospondylus oxoniensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy based on Benson (2008) "A redescription of "Megalosaurus" hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom"
Taxons Duriavenator

Reconstructed skull of Duriavenator hesperis showing known material (white) of the holotype and only known specimen. Unknown bones based on related Eustreptospondylus oxoniensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy based on Benson (2008) "A redescription of "Megalosaurus" hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom"

os écaille Royaume-Uni Bajocien +11
Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.
Taxons Leshansaurus

Reconstructed skull of the holotype and only specimen of Leshansaurus qianweiensis based on the possibly related megalosaurid Dubreuillosaurus valesdunensis. Scale bar is 10cm, image is 10px/cm. Cranial anatomy from figures in Fei et al. (2009) "A new carnosaur from the Late Jurassic of Qianwei, Sichuan, China". White bones are figured, light grey bones are unfigured and minimally described.

os écaille Chine Jurassique +9
Autapomorphies proposed for Diuqin lechiguanae gen. et sp. nov. (MUCPv 1401), with images generated from three-dimensional scans of selected bones. A–B, posteriormost (last) sacral neural arch (MUCPv 1401/1) in dorsal (A) and posterior (B) views. C, anterior caudal neural arch (MUCPv 1401/2) in dorsal view. D, left humerus (MUCPv 1401/4) in lateral view. Abbreviations: al, accessory lamina; dldpr, distolateral deltopectoral ridge; for, foramen. Scale bars equal 3 centimeters
Taxons Diuqin

Autapomorphies proposed for Diuqin lechiguanae gen. et sp. nov. (MUCPv 1401), with images generated from three-dimensional scans of selected bones. A–B, posteriormost (last) sacral neural arch (MUCPv 1401/1) in dorsal (A) and posterior (B) views. C, anterior caudal neural arch (MUCPv 1401/2) in dorsal view. D, left humerus (MUCPv 1401/4) in lateral view. Abbreviations: al, accessory lamina; dldpr, distolateral deltopectoral ridge; for, foramen. Scale bars equal 3 centimeters

os humérus écaille Diuqin +1
Skeletal reconstruction of Dineobellator notohesperus gen. et sp. nov., SMP VP-2430, with known elements colored in white. Figured bones are as follows: fused distal caudal vertebra (A); middle caudal vertebra (B); caudal vertebra 1 (C); right femur (D); rib (E); right basipterygoid (F); left lacrimal (reversed) (G); right jugal (H); right humerus (I); right ulna (J); right metacarpal III (K); right manual ungual II (L); right metatarsal II (M); right metatarsal III. (N) Individual scale bars, 2 cm. Skeletal drawing based off work of Scott Hartman.
Taxons Dineobellator

Skeletal reconstruction of Dineobellator notohesperus gen. et sp. nov., SMP VP-2430, with known elements colored in white. Figured bones are as follows: fused distal caudal vertebra (A); middle caudal vertebra (B); caudal vertebra 1 (C); right femur (D); rib (E); right basipterygoid (F); left lacrimal (reversed) (G); right jugal (H); right humerus (I); right ulna (J); right metacarpal III (K); right manual ungual II (L); right metatarsal II (M); right metatarsal III. (N) Individual scale bars, 2 cm. Skeletal drawing based off work of Scott Hartman.

os humérus écaille vertèbre +2
A diagram showing the bones and feathering preserved in IVPP V 12638, the holotype of Yixianosaurus longimanus, a feathered dinosaur.
Taxons Yixianosaurus

A diagram showing the bones and feathering preserved in IVPP V 12638, the holotype of Yixianosaurus longimanus, a feathered dinosaur.

os holotype Dinosauria Yixianosaurus
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Actualités

À la recherche d'une espèce insaisissable d'allosaure
os Tanzanie Tendaguru fossile Allosauria formation
Allosaurus has become a bit of a taxonomic waste basket.  Ce terme concerne le matériel fossile provenant de théropodes attribué au genre.  Cependant, certaines preuves justifiant l'attribution du matériel sont provisoires.  Par exemple, des os de théropodes du sud-est de la Tanzanie (Formation Tendaguru) avaient été attribués à une espèce d'allosaure nommée Allosaurus tendagurensis.  En 1925,
04/06/2026 everythingdinosaur ⚙ Traduction automatique
Les os géants d'un camarasaure exposés pour la première fois à Angoulême
Les os géants d'un camarasaure exposés pour la première fois à Angoulême
os musée Camarasaurus Diplodocia découverte
Le musée d’Angoulême expose, à partir de vendredi 22 mai, les ossements d’un camarasaure, un cousin du diplodocus de 20 mètres de long. Une première, deux ans après leur découverte spectaculaire à Angeac-Charente (Charente).
22/05/2026 sciencesetavenir
Des scientifiques résolvent le mystère de l'armure osseuse des reptiles vieux de 320 millions d'années
armure os étude
Les reptiles ont développé une armure dans leur peau depuis des centaines de millions d'années, mais les scientifiques n'ont jamais complètement compris comment cette armure a évolué. Une nouvelle étude évolutive massive montre que ces os de peau sont apparus indépendamment dans plusieurs groupes de lézards plutôt que de provenir d'un seul ancêtre blindé. Plus étonnant encore, les goannas australiens ont perdu cette armure il y a longtemps, puis l'ont récupérée des millions d'années plus tard.
21/05/2026 sciencedaily ⚙ Traduction automatique
Mystery of Tyrannosaurus rex’s Tiny Arms May Finally Have an Answer
Le mystère des petits bras du Tyrannosaurus rex pourrait enfin avoir une réponse
os mâchoire prédateur proie Dinosauria Tyrannosaurus
Les paléontologues de l'University College de Londres et de l'Université de Cambridge affirment que les bras minuscules des grands dinosaures prédateurs ont évolué aux côtés de têtes massives et de mâchoires broyantes, ce qui suggère que les anciens prédateurs comptaient de plus en plus sur la morsure plutôt que sur la saisie de leurs proies. L’article Le mystère des petits bras du Tyrannosaurus rex pourrait enfin avoir une réponse apparaît en premier sur Sci.News : Breaking Science News.
20/05/2026 sci-news ⚙ Traduction automatique
Giant New Dinosaur Species Discovered in Thailand Reveals Hidden Diversity of Asian Titans
Une nouvelle espèce de dinosaure géant découverte en Thaïlande révèle la diversité cachée des titans asiatiques
os Thaïlande Crétacé Crétacé inférieur Dinosauria Somphospondyli Titanosauriformes découverte nouvelle espèce
Les paléontologues ont identifié un nouveau genre et une nouvelle espèce de dinosaure titanosauriforme somphospondylan - le plus grand jamais découvert en Asie du Sud-Est - à partir d'ossements fossilisés trouvés en Thaïlande, offrant ainsi une nouvelle preuve que la région abritait un groupe étonnamment diversifié d'énormes herbivores au début du Crétacé. L'article Une nouvelle espèce de dinosaure géant découverte en Thaïlande révèle la diversité cachée des titans asiatiques apparaît en premier sur Sci.News : Breaking Science News.
14/05/2026 sci-news ⚙ Traduction automatique
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