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

Cet étrange serpent ancien se cachait dans un musée depuis des décennies
os musée fossile découverte
Un étrange petit fossile de serpent trouvé sur la côte sud de l’Angleterre a enfin révélé ses secrets, plus de 40 ans après sa découverte. Le nouveau Paradoxophidion richardoweni vivait il y a environ 37 millions d’années, à une époque où la Grande-Bretagne était plus chaude et regorgeait de reptiles. Bien que connu uniquement à partir de minuscules os de la colonne vertébrale, ce « serpent paradoxal » présente un mélange surprenant de traits observés chez les serpents modernes, le plaçant près des racines mêmes du groupe de serpents le plus diversifié d’aujourd’hui.
31/12/2025 sciencedaily ⚙ Traduction automatique
Des os de dinosaures découverts presque les uns sur les autres en Transylvanie
os bassin Roumanie fossile Dinosauria Titanosauria squelette
Des scientifiques explorant le bassin de Hațeg en Roumanie ont découvert l’un des sites de fossiles de dinosaures les plus denses jamais découverts, avec des os presque les uns sur les autres. Le site K2 préserve des milliers de vestiges d’un lac préhistorique alimenté en crue qui agissait comme un piège osseux naturel il y a 72 millions d’années. Aux côtés de dinosaures locaux communs, les chercheurs ont découvert les premiers squelettes de titanosaures bien conservés jamais découverts dans la région. Le site révèle comment les anciens écosystèmes européens de dinosaures se sont formés et ont évolué au cours de cette période.
23/12/2025 sciencedaily ⚙ Traduction automatique
De nouveaux fossiles au Qatar révèlent une petite vache marine cachée depuis 21 millions d'années
os Qatar fossile
Des fossiles du Qatar ont révélé une petite espèce de vache marine nouvellement identifiée qui vivait dans le golfe Persique il y a plus de 20 millions d'années. Le site contient la collection la plus dense connue d’os fossiles de vaches marines, démontrant que ces animaux prospéraient autrefois dans de riches prairies d’herbiers marins. Leur rôle écologique reflète celui des dugongs modernes, qui remodèlent encore les fonds marins du Golfe en broutant. Les résultats pourraient aider les chercheurs à comprendre comment les écosystèmes d’herbiers marins réagissent aux changements environnementaux à long terme.
12/12/2025 sciencedaily ⚙ Traduction automatique
Cet os rare résout enfin le mystère du Nanotyrannus
os croissance musée fossile spécimen Nanotyrannus Tyrannosaurus découverte
Les scientifiques ont confirmé que Nanotyrannus était une espèce mature et non un jeune T. rex. Un examen microscopique de son os hyoïde a fourni la preuve clé, correspondant aux signaux de croissance observés dans les spécimens connus de T. rex. Cette découverte suggère un écosystème de tyrannosaures plus riche et plus compétitif qu’on ne le pensait auparavant. Il montre également comment les fossiles de musée et les analyses de pointe peuvent réécrire l’histoire préhistorique.
09/12/2025 sciencedaily ⚙ Traduction automatique
Des indices de boucherie révèlent que les Néandertaliens auraient pu avoir des « recettes familiales »
os chasse Israël
Les Néandertaliens vivant dans deux grottes voisines de l’ancien Israël préparaient leur nourriture de manières étonnamment différentes, selon de nouvelles preuves archéologiques. Bien qu’ils utilisaient les mêmes outils et chassaient les mêmes animaux, ils ont laissé derrière eux des motifs de coupures distincts sur les os, des indices de traditions culturelles transmises de génération en génération.
17/07/2025 sciencedaily-human-evo ⚙ Traduction automatique
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