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spécimen

Nature du spécimen

204 image(s) · 23 Actualités

Galerie d'images

MSNVE 3714, Ouranosaurus nigeriensis.

The mounted specimen as exhibited today at the MSNVE. For scale, the right femur is 920 mm long.
Taxons Ouranosaurus

MSNVE 3714, Ouranosaurus nigeriensis. The mounted specimen as exhibited today at the MSNVE. For scale, the right femur is 920 mm long.

écaille spécimen Ouranosaurus
Right dentary of Zalmoxes shqiperorum holotype NHMUK R4900in dorsal and lateral views, from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).
Taxons Ferenceratops

Right dentary of Zalmoxes shqiperorum holotype NHMUK R4900in dorsal and lateral views, from the Sinpetru Formation of Sânpetru (Romania; outline based on the specimen UBB NVZ1-1).

Roumanie holotype spécimen Ferenceratops +3
Polycotylus latipinnis specimen (LACM 129639) containing a fetus on display at the Natural History Museum of Los Angeles County.
Taxons Polycotylus

Polycotylus latipinnis specimen (LACM 129639) containing a fetus on display at the Natural History Museum of Los Angeles County.

musée spécimen Polycotylus
The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.
Taxons Glyptodontopelta

The nodosaurid dinosaur, Glyptodontopelta is mostly known from isolated osteoderms ("armor plates"). The specimen SMP VP-1580 (State Museum of Pennysylvania) is however, the most complete known specimen, comprising parts of the skull, hundreds of osteoderms and fragments. This specimen was discovered in 2003 by Warwick Fowler, in the Naashoibito Member of the Ojo Alamo Formation (Maatrichtian, Late Cretaceous) of the San Juan Basin, New Mexico, during an expedition led by Dr. Robert Sullivan.

armure musée Mexique Denver +9
Ornithocheirus simus. A–D holotype CAMSM B54428 (Albian, Cambridge Greensand), anterior part of the rostrum A left lateral view B respective line drawing C ventral view D respective line drawing E–H referred specimen CAMSM B54552 (Albian, Cambridge Greensand), anterior part of the rostrum E anterior view F respective line drawing G left lateral view H respective line drawing. Abbreviations: m – maxillae, pm – premaxillae. Arrows and numbers indicate alveoli or teeth and their respective position. Scale bar = 10 mm.
Taxons Ornithocheirus

Ornithocheirus simus. A–D holotype CAMSM B54428 (Albian, Cambridge Greensand), anterior part of the rostrum A left lateral view B respective line drawing C ventral view D respective line drawing E–H referred specimen CAMSM B54552 (Albian, Cambridge Greensand), anterior part of the rostrum E anterior view F respective line drawing G left lateral view H respective line drawing. Abbreviations: m – maxillae, pm – premaxillae. Arrows and numbers indicate alveoli or teeth and their respective position. Scale bar = 10 mm.

écaille dessin Albien holotype +2
Photograph of Museo civico di scienze naturali di Bergamo (MCSNB) 2888, the holotype specimen of Eudimorphodon ranzii ZAMBELLI 1973, a basal pterosaur from the Norian (middle Upper Triassic) of the Italian Alps.[1]


↑ see fig. 8A in Silvio Renesto (2006): A reappraisal of the diversity and biogeographic significance of the Norian (Late Triassic) reptiles from the Calcare di Zorzino. In: Jerry D. Harris, Spencer G. Lucas, Justin A. Spielmann, Martin G. Lockley, Andrew R.C. Milner, James I. Kirkland (eds.): The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:445–456 (online)
Taxons Eudimorphodon

Photograph of Museo civico di scienze naturali di Bergamo (MCSNB) 2888, the holotype specimen of Eudimorphodon ranzii ZAMBELLI 1973, a basal pterosaur from the Norian (middle Upper Triassic) of the Italian Alps.[1] ↑ see fig. 8A in Silvio Renesto (2006): A reappraisal of the diversity and biogeographic significance of the Norian (Late Triassic) reptiles from the Calcare di Zorzino. In: Jerry D. Harris, Spencer G. Lucas, Justin A. Spielmann, Martin G. Lockley, Andrew R.C. Milner, James I. Kirkland (eds.): The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:445–456 (online)

musée Mexique Jurassique Trias supérieur +6
The skull of a Chasmosaurus mariscalensis, on display at the Texas Memorial Museum. Chasmosaurus was a Cretaceous ceratopsian of North America. This specimen was discovered in Brewster County, Texas.
Taxons Agujaceratops

The skull of a Chasmosaurus mariscalensis, on display at the Texas Memorial Museum. Chasmosaurus was a Cretaceous ceratopsian of North America. This specimen was discovered in Brewster County, Texas.

musée Crétacé spécimen Agujaceratops +3
The official postcard (of the American Museum of Natural History) says this is a Barosaurus, and that "this unique freestanding mount is the only Barosaurus on view in the world". This was true until the installation of another Barosaurus specimen at the Royal Ontario Museum. The adult specimen pictured is AMNH 6341, classified as Barosaurus lentus. The juvenile specimen (AMNH 7530), originally classified as a juvenile Barosaurus, has since been reclassified as a specimen of Kaatedocus siberi.
Taxons Barosaurus

The official postcard (of the American Museum of Natural History) says this is a Barosaurus, and that "this unique freestanding mount is the only Barosaurus on view in the world". This was true until the installation of another Barosaurus specimen at the Royal Ontario Museum. The adult specimen pictured is AMNH 6341, classified as Barosaurus lentus. The juvenile specimen (AMNH 7530), originally classified as a juvenile Barosaurus, has since been reclassified as a specimen of Kaatedocus siberi.

musée juvénile spécimen Barosaurus +1
Cast of Gorgosaurus specimen ROM 1247 (sometimes labelled as Albertosaurus) at the Royal Tyrrell Museum.
Taxons Gorgosaurus

Cast of Gorgosaurus specimen ROM 1247 (sometimes labelled as Albertosaurus) at the Royal Tyrrell Museum.

musée Allemagne moulage spécimen +2
Otozoum tracks in the Dinosaur State Park and Arboretum, Rocky Hill, Connecticut, USA. The exhibit sign reads: "These large negative tracks were made by a heavy animal that walked on four toes and had a short stride. It may have been a prosauropod. All of these tracks have rare skin impressions. This specimen was removed from the Portland Quarry in 1896. Donated by Wesleyan University."
Taxons Otozoum

Otozoum tracks in the Dinosaur State Park and Arboretum, Rocky Hill, Connecticut, USA. The exhibit sign reads: "These large negative tracks were made by a heavy animal that walked on four toes and had a short stride. It may have been a prosauropod. All of these tracks have rare skin impressions. This specimen was removed from the Portland Quarry in 1896. Donated by Wesleyan University."

peau États-Unis Portland spécimen +3
Pachycephalosaurus wyomingensis "Sandy" specimen, Royal Ontario Museum
Taxons Pachycephalosaurus

Pachycephalosaurus wyomingensis "Sandy" specimen, Royal Ontario Museum

musée spécimen Pachycephalosauria
Morphological variation in the Deltapodus ibericus holotype trackway from the CT-1 tracksite. (a) False-color depth maps and interpretative outline drawings of a selection of manus–pes sets within the trackway. Note the variation in manus (from crescent, kidney to semicircular shapes) and pes (reversed delta, semirectangular, and oval shapes) tracks depending on the manus–pes set. Note also that some manus are overprinted by the pes. (b) Mediotype of the pes impressions based on 4 specimens with a mean footprint length of 0.48 m. Note that the morphology of the posterior part of the print is slightly biased (more quadrangular) because this area in track 1CA17p is broken. (c) Mediotype of the manus impressions based on 2 specimens with a mean footprint width of 0.37 m. (d–f) Pictures of a selection of the best-preserved tracks (manus–pes set 1CA23, pes 1CA17p and manus 1CA3m). The false color depth maps were generated with the software CloudCompare (https://www.cloudcompare.org/) and the mediotypes with the software DigTrace (https://www.digtrace.co.uk/).
Taxons Deltapodus

Morphological variation in the Deltapodus ibericus holotype trackway from the CT-1 tracksite. (a) False-color depth maps and interpretative outline drawings of a selection of manus–pes sets within the trackway. Note the variation in manus (from crescent, kidney to semicircular shapes) and pes (reversed delta, semirectangular, and oval shapes) tracks depending on the manus–pes set. Note also that some manus are overprinted by the pes. (b) Mediotype of the pes impressions based on 4 specimens with a mean footprint length of 0.48 m. Note that the morphology of the posterior part of the print is slightly biased (more quadrangular) because this area in track 1CA17p is broken. (c) Mediotype of the manus impressions based on 2 specimens with a mean footprint width of 0.37 m. (d–f) Pictures of a selection of the best-preserved tracks (manus–pes set 1CA23, pes 1CA17p and manus 1CA3m). The false color depth maps were generated with the software CloudCompare (https://www.cloudcompare.org/) and the mediotypes with the software DigTrace (https://www.digtrace.co.uk/).

dessin Royaume-Uni holotype spécimen +2
Brontosaurus excelsus in the Yale Peabody Museum of Natural History.
Brontosaurus excelsus
Inv no. YPM 1980 (holotype specimen of the species)
Discoverer William H. Reed 1879
Locality Como Bluff, Wyoming
Age Morrison Formatian, Jurassic period, 150 million years ago
Taxons Phytodinosauria

Brontosaurus excelsus in the Yale Peabody Museum of Natural History. Brontosaurus excelsus Inv no. YPM 1980 (holotype specimen of the species) Discoverer William H. Reed 1879 Locality Como Bluff, Wyoming Age Morrison Formatian, Jurassic period, 150 million years ago

musée Morrison Jurassique holotype +3
Type (a) and paratype (b) partial eggs of Stillatuberoolithus storrsi. Cropped from Figure 2 of Oser et al. (2021). These eggs are housed in Denver Museum of Nature and Science, specimen numbers EPV.65602 and EPV.128286 respectively.
Taxons Stillatuberoolithus

Type (a) and paratype (b) partial eggs of Stillatuberoolithus storrsi. Cropped from Figure 2 of Oser et al. (2021). These eggs are housed in Denver Museum of Nature and Science, specimen numbers EPV.65602 and EPV.128286 respectively.

musée Denver spécimen Stillatuberoolithus +1
Complete specimen of the Laueropterus vitriolus holotype (LF 6268). The holotype specimen seen under natural light. Major elements are labeled. Abbreviations as follows here and in subsequent figures: ca, caudal vertebra; cp, carpal; cv, cervical vertebrae; dv, dorsal vertebra; fe, femur; hu, humerus; mn, mandible; mt, metatarsal; ph, phalanges; pmm, premaxilla-maxilla; pp, prepubis; pt, pteroid; pv, pelvic plate; r, rib; sa, sacrum; sc, scapulocoracoid; sk, skull part; st, sternum; ta, tarsals; ti, tibia; ul, ulna; un, ungual; wpx, wing phalanges; wmc, wing metacarpal. Scale bar = 100 mm.
Taxons Laueropterus

Complete specimen of the Laueropterus vitriolus holotype (LF 6268). The holotype specimen seen under natural light. Major elements are labeled. Abbreviations as follows here and in subsequent figures: ca, caudal vertebra; cp, carpal; cv, cervical vertebrae; dv, dorsal vertebra; fe, femur; hu, humerus; mn, mandible; mt, metatarsal; ph, phalanges; pmm, premaxilla-maxilla; pp, prepubis; pt, pteroid; pv, pelvic plate; r, rib; sa, sacrum; sc, scapulocoracoid; sk, skull part; st, sternum; ta, tarsals; ti, tibia; ul, ulna; un, ungual; wpx, wing phalanges; wmc, wing metacarpal. Scale bar = 100 mm.

humérus écaille vertèbre holotype +3
‘Araripesaurus castilhoi’ A, B, holotype (DGM 549-R), the first pterosaur specimen from the Araripe basin, described by L. I. Price in 1971.
Taxons Araripesaurus

‘Araripesaurus castilhoi’ A, B, holotype (DGM 549-R), the first pterosaur specimen from the Araripe basin, described by L. I. Price in 1971.

holotype spécimen Araripesaurus Pterosauria
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Actualités

Un ancien crocodile égyptien au long museau réécrit l’évolution
chasse prédateur Égypte fossile spécimen découverte évolution
Un parent de crocodile nouvellement identifié en Égypte repousse les origines des dyrosauridés chasseurs marins de plusieurs millions d'années. Le fossile, Wadisuchus kassabi, présente un mélange de traits primitifs et avancés qui marquent une transition évolutive clé. Des spécimens rares d’âges différents révèlent comment ces anciens prédateurs se sont développés. Cette découverte renforce l’Afrique en tant que centre de l’évolution précoce des dyrosauridés.
01/12/2025 sciencedaily ⚙ Traduction automatique
Zavacephale: Beast of the Week
Zavacephale : Bête de la semaine
Mongolie Crétacé Crétacé inférieur spécimen Dinosauria Pachycephalosauria Zavacephale
 Cette semaine, nous examinerons un petit dinosaure nouvellement décrit qui élargit considérablement nos connaissances sur l'un des types de dinosaures les plus inhabituels, les pachycéphalosaures.  Bienvenue Zavacephale rinpoché !Zavacephale vivait dans ce qui est aujourd'hui la Mongolie au début du Crétacé, il y a entre 119 et 110 millions d'années.  Du museau à la queue, le spécimen trouvé ne mesurait qu'environ 1 mètre de long, mais il aurait probablement pu grandir.  Le nom du genre, Zavacephale, tran
21/09/2025 prehistoricbeastoftheweek ⚙ Traduction automatique
De nouveaux fossiles révèlent une branche cachée de l’évolution humaine
dent Éthiopie fossile spécimen découverte évolution
Les fossiles découverts en Éthiopie remodèlent notre vision de l’évolution humaine. Au lieu d’une marche directe depuis des ancêtres ressemblant à des singes jusqu’aux humains modernes, les chercheurs voient désormais un arbre enchevêtré et ramifié avec plusieurs espèces coexistant. Des dents récemment découvertes révèlent une espèce d'australopithèque jusqu'alors inconnue qui vivait aux côtés de certains des premiers spécimens d'Homo il y a près de 2,8 millions d'années. Cela suggère que la nature a testé plusieurs versions de « l’être humain » avant que notre lignée ne perdure.
28/08/2025 sciencedaily-human-evo ⚙ Traduction automatique
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