membre

Partie anatomique

10 image(s) · 15 Actualités

Galerie d'images

Forelimb and partial hindlimb of the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 22 in Merriam (1903), done by an uncredited artist.
Original description: Leptocheirus zitteli n. gen. and sp.
Figures reproduced natural size from the type specimen.

Fig. 1. — Superior side of left anterior limb. r, radius.
Fig. 2. — Posterior limb. t, tibia.

Forelimb and partial hindlimb of the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 22 in Merriam (1903), done by an uncredited artist. Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Superior side of left anterior limb. r, radius. Fig. 2. — Posterior limb. t, tibia.

membre description Trias holotype +7
Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus californicus. This image is derived from plate 24 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original.
Original description:
Toretocnemus californicus n. gen. and sp.
Figures reproduced natural size from the type specimen.

Fig. 1. — Inferior side of right posterior limb. t, tibia.
Fig. 2. — Right anterior limb. r, radius.
Fig. 3.— Pelvic arch.
Fig. 4. — Middle dorsal vertebrae and a rib from the same region.

Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus californicus. This image is derived from plate 24 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original. Original description: Toretocnemus californicus n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Inferior side of right posterior limb. t, tibia. Fig. 2. — Right anterior limb. r, radius. Fig. 3.— Pelvic arch. Fig. 4. — Middle dorsal vertebrae and a rib from the same region.

membre description Trias fossile +6
Holotype of Eosipterus yangi GMV 2117, displaying soft tissue preservation around the hind limbs and/or ankles.
Taxons Eosipterus

Holotype of Eosipterus yangi GMV 2117, displaying soft tissue preservation around the hind limbs and/or ankles.

membre tissus holotype Eosipterus
Holotype of Jaculinykus yaruui gen. et sp. nov. (MPC-D 100/209). (A) Photograph of the specimen. (B) Explanatory drawing of (A). Highlighted areas refer to the indication of the skeletal elements; skull in green, tail in grey, pectoral girdle and forelimbs in red, pelvis and hind limbs in purple. (C) Reconstruction of Jaculinykus yaruui gen. et sp. nov. Grey areas are missing parts.
Taxons Jaculinykus

Holotype of Jaculinykus yaruui gen. et sp. nov. (MPC-D 100/209). (A) Photograph of the specimen. (B) Explanatory drawing of (A). Highlighted areas refer to the indication of the skeletal elements; skull in green, tail in grey, pectoral girdle and forelimbs in red, pelvis and hind limbs in purple. (C) Reconstruction of Jaculinykus yaruui gen. et sp. nov. Grey areas are missing parts.

membre bassin dessin holotype +3
A restoration of Rinconsaurus compared to a human ,

•  Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain.
•  Osteroderms are not yet known in Rinconsaurus.  The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4]
•  The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative.
•  Human silhouette approximately 180 cm tall.

NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well.  Thanks.   


References


↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21.

↑   González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) 

↑  Carrano, M.T. and D’Emic, M.D.  2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology.

↑    Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488
Taxons Rinconsaurus

A restoration of Rinconsaurus compared to a human , • Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain. • Osteroderms are not yet known in Rinconsaurus. The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4] • The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative. • Human silhouette approximately 180 cm tall. NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well. Thanks. References ↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21. ↑ González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) ↑ Carrano, M.T. and D’Emic, M.D. 2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology. ↑ Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488

membre description fossile juvénile +4
A restoration of Rinconsaurus compared to a human ,

•  Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain.
•  Osteroderms are not yet known in Rinconsaurus.  The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4]
•  The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative.
•  Human silhouette approximately 180 cm tall.

NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well.  Thanks.   


References


↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21.

↑   González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) 

↑  Carrano, M.T. and D’Emic, M.D.  2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology.

↑    Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488
Taxons Rinconsauria

A restoration of Rinconsaurus compared to a human , • Based proportionally on fossil elements and skeletal reconstruction featured in the Rinconsaurus description,[1] with missing parts based on other titanosaur reconstructions. The remains of Rinconsaurus represent two adults and a juvenile all of which are incomplete; some of the proportions shown here, such as the neck, limb lengths, and skull shape are not certain. • Osteroderms are not yet known in Rinconsaurus. The osteoderms shown here are based loosely on Mendozasaurus.[2] Osteoderms are known from at least 10 titanosaur genera spread across the family tree but it's not clear if all titanosaurs had them.[3] Titanosaur osteoderms are rare and their layout and position on the body are not certain. [4] • The colours and patterns, as with the majority of reconstructions of prehistoric creatures, are speculative. • Human silhouette approximately 180 cm tall. NOTE: I often update my images. If you want to have any of my images on a website, please (if possible) don’t host/save it to the website server. I’d prefer it if the image's Wikimedia URL is used. This means that if I update an image, it will be updated on the site as well. Thanks. References ↑ Coria, Jorge; B.J.G. Riga (2003). "Rinconsaurus caudamirus gen. et sp nov., a new titanosaurid (Dinosauria, Sauropoda) from the Late Cretaceous of Patagonia, Argentina". Revista Geologica de Chile 30 (2): 333–353. ISSN 0716-0208. Retrieved on 2007-05-21. ↑ González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2) ↑ Carrano, M.T. and D’Emic, M.D. 2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology. ↑ Vidal D, Ortega F, Sanz JL (2014) Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs. PLoS ONE 9(8): e102488. doi:10.1371/journal.pone.0102488

membre description fossile juvénile +4
Juvenile Gorgosaurus TMP 2009.12.14 preserving stomach contents. Photographs of specimen in (A) right lateral view and (B) left anterolateral view. (C) Interpretive illustration of specimen in right lateral view. Skeleton consists of a nearly complete skull, the left side of the body and limbs, and a nearly complete pelvis. Red rectangle delineates location of stomach contents. (D) Histological photomicrograph of tibia showing the presence of five lines of arrested growths and two annuli (marked by asterisks), indicating that the individual was between 5 and 7 years old. Scale bars, 50 cm (A) to (C) and 1 mm (D).

Juvenile Gorgosaurus TMP 2009.12.14 preserving stomach contents. Photographs of specimen in (A) right lateral view and (B) left anterolateral view. (C) Interpretive illustration of specimen in right lateral view. Skeleton consists of a nearly complete skull, the left side of the body and limbs, and a nearly complete pelvis. Red rectangle delineates location of stomach contents. (D) Histological photomicrograph of tibia showing the presence of five lines of arrested growths and two annuli (marked by asterisks), indicating that the individual was between 5 and 7 years old. Scale bars, 50 cm (A) to (C) and 1 mm (D).

membre bassin écaille croissance +6
Right hind limb of the sauropodomorph dinosaur Musankwa sanyatiensis gen. et sp. nov. (NHMZ 2521) from the Pebbly Arkose Formation (Norian, Upper Triassic) of Spurwing Island, Zimbabwe. A. Right femur in posterior (A1), lateral (A2), anterior (A3), medial (A4), proximal (A5), and distal (A6) views. B. Right tibia with conjoined astragalus in anterior (B1), lateral (B2), posterior (B3), medial (B4), and proximal (B5) views.
Taxons Musankwa

Right hind limb of the sauropodomorph dinosaur Musankwa sanyatiensis gen. et sp. nov. (NHMZ 2521) from the Pebbly Arkose Formation (Norian, Upper Triassic) of Spurwing Island, Zimbabwe. A. Right femur in posterior (A1), lateral (A2), anterior (A3), medial (A4), proximal (A5), and distal (A6) views. B. Right tibia with conjoined astragalus in anterior (B1), lateral (B2), posterior (B3), medial (B4), and proximal (B5) views.

membre Zimbabwe Norien Trias +3
Uncovered skeleton of
Brachauchenius sp. VL from
the late Barremian Formacio´n
Paja of Loma La Cabrera, Villa
de Leyva area, in dorsal view.
The far posterior part (ischia,
tail) and the right hind limb are

not preserved.
Taxons Stenorhynchosaurus

Uncovered skeleton of Brachauchenius sp. VL from the late Barremian Formacio´n Paja of Loma La Cabrera, Villa de Leyva area, in dorsal view. The far posterior part (ischia, tail) and the right hind limb are not preserved.

membre Barrémien Brachauchenius Stenorhynchosaurus +1
Cardiocorax mukulu hind limb on display at the Smithsonian's National Museum of Natural History.
Taxons Cardiocorax

Cardiocorax mukulu hind limb on display at the Smithsonian's National Museum of Natural History.

membre musée Cardiocorax
Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus californicus. This image is derived from plate 24 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original.
Original description:
Toretocnemus californicus n. gen. and sp.
Figures reproduced natural size from the type specimen.

Fig. 1. — Inferior side of right posterior limb. t, tibia.
Fig. 2. — Right anterior limb. r, radius.
Fig. 3.— Pelvic arch.
Fig. 4. — Middle dorsal vertebrae and a rib from the same region.
Taxons Toretocnemus

Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus californicus. This image is derived from plate 24 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original. Original description: Toretocnemus californicus n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Inferior side of right posterior limb. t, tibia. Fig. 2. — Right anterior limb. r, radius. Fig. 3.— Pelvic arch. Fig. 4. — Middle dorsal vertebrae and a rib from the same region.

membre description Trias fossile +5

Actualités

On sait enfin pourquoi le T. rex avait de si petits bras, et la réponse est brutale
On sait enfin pourquoi le T. rex avait de si petits bras, et la réponse est brutale
membre prédateur Tyrannosaurus étude
Pendant des décennies, les minuscules bras du Tyrannosaurus rex ont intrigué les paléontologues. Comment un prédateur aussi gigantesque a-t-il pu évoluer avec des membres antérieurs si réduits ? Une nouvelle étude apporte aujourd’hui un début de réponse et elle pourrait bien concerner plusieurs...
20/05/2026 futura-terre
Une nouvelle étude résout le mystère des minuscules bras de dinosaures théropodes
membre Dinosauria Tyrannosaurus étude
Pourquoi le T. rex avait-il des bras minuscules ?  C’est une question qu’on nous pose souvent chez Everything Dinosaur.  Ironiquement, plusieurs lignées de théropodes non étroitement apparentées présentent une réduction des membres antérieurs. Le Tyrannosaure rex possédait des armes légères, tout comme de nombreux autres grands dinosaures carnivores. Une nouvelle étude suggère que les petits bras de certains théropodes
20/05/2026 everythingdinosaur ⚙ Traduction automatique
Les petits bras du T. rex pourraient avoir évolué pour une raison étonnamment brutale
mâchoire membre chasse prédateur proie Dinosauria crâne
Pourquoi le T. rex avait-il des bras si petits ? Les scientifiques pensent désormais que c’est parce que sa tête géante est devenue l’outil de chasse ultime. Dans plusieurs groupes de dinosaures, des crânes plus forts et des mâchoires écrasantes ont évolué parallèlement à des membres antérieurs rétrécis, en particulier chez les prédateurs chassant d'énormes proies. En d’autres termes, une fois que la morsure est devenue suffisamment mortelle, les bras ont peut-être cessé d’avoir de l’importance.
20/05/2026 sciencedaily ⚙ Traduction automatique
Qu'était Dunkleosteus ? Faits sur le poisson blindé géant (partie 2)
membre Dévonien Dévonien
Plus tôt cette semaine, nous avons publié un article répondant aux questions sur Dunkleosteus.  Les membres de l'équipe reçoivent des e-mails et on nous pose souvent des questions sur les animaux préhistoriques.  Des questions sont fréquemment posées sur le poisson géant du Dévonien Dunkleosteus.  Nous faisons de notre mieux pour répondre à toutes les requêtes reçues. Dans l'article d'aujourd'hui, nous visons à répondre à davantage de questions à ce sujet.
07/05/2026 everythingdinosaur ⚙ Traduction automatique
Rethinking the Cambrian Explosion: Before Shells and Limbs, There Was the Brain
Repenser l'explosion cambrienne : avant les obus et les membres, il y avait le cerveau
membre Cambrien évolution
Une nouvelle hypothèse propose que l'explosion cambrienne – l'éclatement soudain de la diversité animale il y a 500 millions d'années – n'ait pas été provoquée par des coquilles ou des membres, mais par l'évolution précoce de systèmes nerveux complexes. L'article Repenser l'explosion cambrienne : avant les obus et les membres, il y avait le cerveau est apparu en premier sur Sci.News : Breaking Science News.
06/05/2026 sci-news ⚙ Traduction automatique
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