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spécimen

Nature du spécimen

204 image(s) · 23 Actualités

Galerie d'images

Comparison between the tails of for different Ichthyosauria specimens, captions present and in German, from Abel, O. (1919). Die Stämme der Wirbeltiere.

Comparison between the tails of for different Ichthyosauria specimens, captions present and in German, from Abel, O. (1919). Die Stämme der Wirbeltiere.

spécimen Ichthyosauria Mixosauridae
Figure description from paper: "Figure 23: Early and Middle Triassic ichthyopterygian heads possessing longirostry.
Simplified outlines of four different Early and Middle Triassic ichthyopterygian heads possessing a long and slender rostrum. Specimens are at the same scale. (A) Utatsusaurus hataii (UHR 30691, Motani, Minoura & Ando, 1998); (B) Grippia longirostris (PMU R445, Motani, 2000); (C) Mixosaurus cornalianus (BES SC 1000, Renesto et al., 2020); (D) Besanosaurus leptorhynchus (PIMUZ T 4847, this paper); (E) Cymbospondylus buchseri (PIMUZ T 4351, Sander, 1989). Scale bar represents 10 cm."
References:

Bindellini, G.; Wolniewicz, A.S.; Miedema, F.; Scheyer, T.M.; Dal Sasso, C. (2021). "Cranial anatomy of Besanosaurus leptorhynchus Dal Sasso & Pinna, 1996 (Reptilia: Ichthyosauria) from the Middle Triassic Besano Formation of Monte San Giorgio, Italy/Switzerland: Taxonomic and palaeobiological implications". PeerJ 9: e11179. DOI:10.7717/peerj.11179.

Figure description from paper: "Figure 23: Early and Middle Triassic ichthyopterygian heads possessing longirostry. Simplified outlines of four different Early and Middle Triassic ichthyopterygian heads possessing a long and slender rostrum. Specimens are at the same scale. (A) Utatsusaurus hataii (UHR 30691, Motani, Minoura & Ando, 1998); (B) Grippia longirostris (PMU R445, Motani, 2000); (C) Mixosaurus cornalianus (BES SC 1000, Renesto et al., 2020); (D) Besanosaurus leptorhynchus (PIMUZ T 4847, this paper); (E) Cymbospondylus buchseri (PIMUZ T 4351, Sander, 1989). Scale bar represents 10 cm." References: Bindellini, G.; Wolniewicz, A.S.; Miedema, F.; Scheyer, T.M.; Dal Sasso, C. (2021). "Cranial anatomy of Besanosaurus leptorhynchus Dal Sasso & Pinna, 1996 (Reptilia: Ichthyosauria) from the Middle Triassic Besano Formation of Monte San Giorgio, Italy/Switzerland: Taxonomic and palaeobiological implications". PeerJ 9: e11179. DOI:10.7717/peerj.11179.

écaille description Italie Suisse +12
Besanosaurus leptorhynchus referred specimen PIMUZ T 4376, preserved on the same slab as a specimen of the smaller Mixosaurus. Scale bar represents 50 cm (1.6 ft). Figure 3C of Bindellini et al. (2021).
References:

Bindellini, G.; Wolniewicz, A.S.; Miedema, F.; Scheyer, T.M.; Dal Sasso, C. (2021). "Cranial anatomy of Besanosaurus leptorhynchus Dal Sasso & Pinna, 1996 (Reptilia: Ichthyosauria) from the Middle Triassic Besano Formation of Monte San Giorgio, Italy/Switzerland: Taxonomic and palaeobiological implications". PeerJ 9: e11179. DOI:10.7717/peerj.11179.

Besanosaurus leptorhynchus referred specimen PIMUZ T 4376, preserved on the same slab as a specimen of the smaller Mixosaurus. Scale bar represents 50 cm (1.6 ft). Figure 3C of Bindellini et al. (2021). References: Bindellini, G.; Wolniewicz, A.S.; Miedema, F.; Scheyer, T.M.; Dal Sasso, C. (2021). "Cranial anatomy of Besanosaurus leptorhynchus Dal Sasso & Pinna, 1996 (Reptilia: Ichthyosauria) from the Middle Triassic Besano Formation of Monte San Giorgio, Italy/Switzerland: Taxonomic and palaeobiological implications". PeerJ 9: e11179. DOI:10.7717/peerj.11179.

écaille Italie Suisse Trias moyen +8
Reconstructed skeleton of the indeterminate Moroccan Cretaceous plioplatecarpine (Mosasauridae: Plioplatecarpinae) NMNS005676 F043103, possibly Gavialimimus almaghribensis or an unnamed species (according to Yang, 2022). A collection of the National Museum of Natural Science (Taichung, Taiwan), the specimen was on display in the National Taiwan Museum during a special exhibition.
Taxons Gavialimimus

Reconstructed skeleton of the indeterminate Moroccan Cretaceous plioplatecarpine (Mosasauridae: Plioplatecarpinae) NMNS005676 F043103, possibly Gavialimimus almaghribensis or an unnamed species (according to Yang, 2022). A collection of the National Museum of Natural Science (Taichung, Taiwan), the specimen was on display in the National Taiwan Museum during a special exhibition.

musée Taïwan Crétacé spécimen +6
Lithography of specimen ANSP 9534, the lectotype of Deinodon horridus.
Taxons Deinodontinae

Lithography of specimen ANSP 9534, the lectotype of Deinodon horridus.

spécimen Deinodon Deinodontinae
PRESERVED_SPECIMEN; ; ; microslide; HOLOTYPE. See: Sanders, Howard L. 1955. The Cephalocarida, a new subclass of Crustacea from Long Island Sound. Proceedings of the National Academy of Sciences. 41 (1): 61-66.; CSBR Slide Grant Image 2015; IZ number 3617; lot count 1; Microslide 01, balsam, whole mount; 1954-07-23T00:00:00Z
Taxons Brachypoda

PRESERVED_SPECIMEN; ; ; microslide; HOLOTYPE. See: Sanders, Howard L. 1955. The Cephalocarida, a new subclass of Crustacea from Long Island Sound. Proceedings of the National Academy of Sciences. 41 (1): 61-66.; CSBR Slide Grant Image 2015; IZ number 3617; lot count 1; Microslide 01, balsam, whole mount; 1954-07-23T00:00:00Z

holotype spécimen Brachypoda
Collage of two protoceratopsids. Bagaceratops (top) and Protoceratops (bottom). These files are already on Commons with their respective licenses. This montage was made for the article Protoceratopsidae on Wikipedia.
File:Bagaceratops specimen MPC-D 100 551B.png
File:Protoceratops specimen MPC-D 100 519.jpg
Taxons Protoceratopsidae

Collage of two protoceratopsids. Bagaceratops (top) and Protoceratops (bottom). These files are already on Commons with their respective licenses. This montage was made for the article Protoceratopsidae on Wikipedia. File:Bagaceratops specimen MPC-D 100 551B.png File:Protoceratops specimen MPC-D 100 519.jpg

spécimen Bagaceratops Bagaceratopsidae Protoceratops +1
Collage of two protoceratopsids. Bagaceratops (top) and Protoceratops (bottom). These files are already on Commons with their respective licenses. This montage was made for the article Protoceratopsidae on Wikipedia.
File:Bagaceratops specimen MPC-D 100 551B.png
File:Protoceratops specimen MPC-D 100 519.jpg
Taxons Bagaceratopsidae

Collage of two protoceratopsids. Bagaceratops (top) and Protoceratops (bottom). These files are already on Commons with their respective licenses. This montage was made for the article Protoceratopsidae on Wikipedia. File:Bagaceratops specimen MPC-D 100 551B.png File:Protoceratops specimen MPC-D 100 519.jpg

spécimen Bagaceratops Bagaceratopsidae Protoceratops +1
Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Taxons Caenagnathidae

Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)

vertèbre spécimen Anzu Caenagnathidae +4
Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Taxons Caenagnathinae

Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)

vertèbre spécimen Anzu Caenagnathidae +4
Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)
Taxons Elmisaurinae

Restored skull and neck vertebra of Anzu wyliei (previously labelled as a specimen of Chirostenotes)

vertèbre spécimen Anzu Caenagnathidae +4
Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.
Taxons Hueneosauria

Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.

musée Trias moyen Trias spécimen +5
Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.
Taxons Longipinnati

Skull of the Middle Triassic North-American ichthyosaur Cymbospondylus petrinus, preserved in three dimensions. This specimen is cataloged under the number UCMP 9913. More information is available from the source link.

musée Trias moyen Trias spécimen +5
Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.
Taxons Pteranodontia

Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.

musée spécimen Aponyctosauria Pteranodon +2
Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.
Taxons Aponyctosauria

Skull of Pteranodon sp. (specimen AMNH 7515) in the American Museum of Natural History.

musée spécimen Aponyctosauria Pteranodon +2
Holotype fossil specimen SMNS 12591 of Procompsognathus
Taxons Procompsognathus

Holotype fossil specimen SMNS 12591 of Procompsognathus

fossile holotype spécimen Procompsognathinae +1
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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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