nouvelle espèce

Thématique

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Life restoration of the small German Jurassic ichthyosaur Hauffiopteryx typicus.
References
Maxwell, E. E.; Cortés, D. (2020). "A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from Southwestern Germany". Palaeontologia Electronica 23: 1–43. Archived from the original on 2022-07-06. Retrieved on 2022-03-15.
Note: This image is currently uncolored
Taxons Hauffiopteryx

Life restoration of the small German Jurassic ichthyosaur Hauffiopteryx typicus. References Maxwell, E. E.; Cortés, D. (2020). "A revision of the Early Jurassic ichthyosaur Hauffiopteryx (Reptilia: Ichthyosauria), and description of a new species from Southwestern Germany". Palaeontologia Electronica 23: 1–43. Archived from the original on 2022-07-06. Retrieved on 2022-03-15. Note: This image is currently uncolored

description Allemagne Jurassique inférieur Jurassique +3
Life restoration of the Triassic ichthyosaur Callawayia neoscapularis. Three specimens of this ichthyosaur are known, the holotype, ROM 41993, and two referred specimens, TMP 94.380.11 and 94.382.2. The skull is primarily based on ROM 41993, cross-checked against TMP 94.380.11 and TMP 94.382.2. The vertebral column is based primarily on TMP 94.382.2 as it is the most complete of these specimens, while the ribs were based on ROM 41993. The forelimbs were mainly based on those of ROM 41993, with TMP 94.380.11 used to determine their breadth. The hindlimbs were based on TMP 94.380.11, especially the more complete right hindlimb.
ROM 41993 was cross-scaled with TMP 94.380.11 by the dimensions of the forelimb epipodials, which produced similar vertebral dimensions. The two TMP specimens were cross-scaled based on femoral length, also producing similar vertebral dimensions. Nicholls & Manabe (2001) stated that no wedge-shaped caudal centra supporting a tailbend were found and that there was no evidence of a bend being present, though considered that they might have existed in the gap in the preserved caudals. Since various other Triassic ichthyosaurs have since been found to have tail bends, one was illustrated here. A modest downturn of roughly 15° was illustrated, comparable to that in Guanlingsaurus, and the location of the bend within the gap in the preserved vertebrae matches well with the location of the bend in Guizhouichthyosaurus.

References
McGowan, C. (1994). "A new species of Shastasaurus (Reptilia: Ichthyosauria) from the Triassic of British Columbia: The most complete exemplar of the genus". Journal of Vertebrate Paleontology 14 (2): 168–179. DOI:10.1080/02724634.1994.10011550.
Nicholls, E. L.; Manabe, M. (2001). "A new genus of ichthyosaur from the Late Triassic Pardonet Formation of British Columbia: Bridging the Triassic-Jurassic gap". Canadian Journal of Earth Sciences 38 (6): 983–1002.
Ji, C.; Jiang, D.Y.; Hao, W.; Sun, Y. (2011). "True tailbend occurred in the Late Triassic: Evidence from ichthyosaur skeletons of South China". Acta Scientiarum Naturalium Universitatis Pekinensis 47 (2): 309–314.
Shang, Q. H.; Li, C. (2009). "On the occurrence of the ichthyosaur Shastasaurus in the Guanling biota (Late Triassic), Guizhou, China". Vertebrata PalAsiatica 47 (3): 178–193.
Taxons Guanlingsaurus

Life restoration of the Triassic ichthyosaur Callawayia neoscapularis. Three specimens of this ichthyosaur are known, the holotype, ROM 41993, and two referred specimens, TMP 94.380.11 and 94.382.2. The skull is primarily based on ROM 41993, cross-checked against TMP 94.380.11 and TMP 94.382.2. The vertebral column is based primarily on TMP 94.382.2 as it is the most complete of these specimens, while the ribs were based on ROM 41993. The forelimbs were mainly based on those of ROM 41993, with TMP 94.380.11 used to determine their breadth. The hindlimbs were based on TMP 94.380.11, especially the more complete right hindlimb. ROM 41993 was cross-scaled with TMP 94.380.11 by the dimensions of the forelimb epipodials, which produced similar vertebral dimensions. The two TMP specimens were cross-scaled based on femoral length, also producing similar vertebral dimensions. Nicholls & Manabe (2001) stated that no wedge-shaped caudal centra supporting a tailbend were found and that there was no evidence of a bend being present, though considered that they might have existed in the gap in the preserved caudals. Since various other Triassic ichthyosaurs have since been found to have tail bends, one was illustrated here. A modest downturn of roughly 15° was illustrated, comparable to that in Guanlingsaurus, and the location of the bend within the gap in the preserved vertebrae matches well with the location of the bend in Guizhouichthyosaurus. References McGowan, C. (1994). "A new species of Shastasaurus (Reptilia: Ichthyosauria) from the Triassic of British Columbia: The most complete exemplar of the genus". Journal of Vertebrate Paleontology 14 (2): 168–179. DOI:10.1080/02724634.1994.10011550. Nicholls, E. L.; Manabe, M. (2001). "A new genus of ichthyosaur from the Late Triassic Pardonet Formation of British Columbia: Bridging the Triassic-Jurassic gap". Canadian Journal of Earth Sciences 38 (6): 983–1002. Ji, C.; Jiang, D.Y.; Hao, W.; Sun, Y. (2011). "True tailbend occurred in the Late Triassic: Evidence from ichthyosaur skeletons of South China". Acta Scientiarum Naturalium Universitatis Pekinensis 47 (2): 309–314. Shang, Q. H.; Li, C. (2009). "On the occurrence of the ichthyosaur Shastasaurus in the Guanling biota (Late Triassic), Guizhou, China". Vertebrata PalAsiatica 47 (3): 178–193.

Chine Jurassique Trias supérieur Trias +12
New species of Mesozoic benthic foraminifera from the former British Petroleum micropalaeontology collection, Ophthalmidium dracomaris n. sp.
(1) holotype (NHMUK PM PF 74496); (2–5) paratypes (NHMUK PM PF 74497–74500). (8–9) Eobigenerina calloviensis n. sp.: (8) holotype (NHMUK PM PF 74504); (9) paratype (NHMUK PM PF 74505). (10–12) Trochammina fordonensis n. sp.: (10) holotype (NHMUK PM PF 74501); (11–12) paratype (NHMUK PM PF 74502–74503). (13–15) Arenoturrispirillina swiecickii n. sp.: (13) holotype (NHMUK PM PF 74506); (14–15) paratype (NHMUK PM PF 74507 + NHMUK PM PF 74552). (16–17) Ataxophragmium mariae n. sp.: (16) holotype (NHMUK PM PF 74553); (17) paratype (NHMUK PM PF 74554).

New species of Mesozoic benthic foraminifera from the former British Petroleum micropalaeontology collection, Ophthalmidium dracomaris n. sp. (1) holotype (NHMUK PM PF 74496); (2–5) paratypes (NHMUK PM PF 74497–74500). (8–9) Eobigenerina calloviensis n. sp.: (8) holotype (NHMUK PM PF 74504); (9) paratype (NHMUK PM PF 74505). (10–12) Trochammina fordonensis n. sp.: (10) holotype (NHMUK PM PF 74501); (11–12) paratype (NHMUK PM PF 74502–74503). (13–15) Arenoturrispirillina swiecickii n. sp.: (13) holotype (NHMUK PM PF 74506); (14–15) paratype (NHMUK PM PF 74507 + NHMUK PM PF 74552). (16–17) Ataxophragmium mariae n. sp.: (16) holotype (NHMUK PM PF 74553); (17) paratype (NHMUK PM PF 74554).

Mésozoïque holotype nouvelle espèce
A figure from Notes on Osteology of Baptanodon. With a Description of a New Species.
Taxons Baptanodon

A figure from Notes on Osteology of Baptanodon. With a Description of a New Species.

description Baptanodon nouvelle espèce
Muttaburrasaurus
The plants, animals and climate of the Australian continent have changed dramatically over long periods of time. Imagine this giant creature roaming the luxuriant wet forests that covered parts of the continent in the Cretaceous period, about 100-110 million years ago. The Muttaburrasaurus ambled along on all four legs or stood on its hind legs. Its large teeth were well adapted to eat tough vegetation such as the leathery foliage of the evergreen forests of Araucaria trees, ancient relatives of the bunya pine of south-eastern Queensland.
In 1963, grazier Doug Langdon discovered the fossilised bones of a dinosaur on his property near Muttaburra in central-west Queensland. It was one of the most complete dinosaur skeletons found in Australia. The bones belonged to a new species of ornithopod and palaeontologists named it Muttaburrasaurus langdoni.

Cast of Muttaburresaurus langdoni 1987 made by Queensland Museum, Brisbane National Museum of Australia
Taxons Muttaburrasaurus

Muttaburrasaurus The plants, animals and climate of the Australian continent have changed dramatically over long periods of time. Imagine this giant creature roaming the luxuriant wet forests that covered parts of the continent in the Cretaceous period, about 100-110 million years ago. The Muttaburrasaurus ambled along on all four legs or stood on its hind legs. Its large teeth were well adapted to eat tough vegetation such as the leathery foliage of the evergreen forests of Araucaria trees, ancient relatives of the bunya pine of south-eastern Queensland. In 1963, grazier Doug Langdon discovered the fossilised bones of a dinosaur on his property near Muttaburra in central-west Queensland. It was one of the most complete dinosaur skeletons found in Australia. The bones belonged to a new species of ornithopod and palaeontologists named it Muttaburrasaurus langdoni. Cast of Muttaburresaurus langdoni 1987 made by Queensland Museum, Brisbane National Museum of Australia

os musée Australie Crétacé +5

Actualités

Meet Bataspis crux, Jawless Fish that Cruised Devonian Seas with Batwing Head
Rencontrez Bataspis crux, un poisson sans mâchoire qui naviguait dans les mers du Dévonien avec une tête de chauve-souris
mâchoire Chine Dévonien Dévonien poisson nouvelle espèce crâne
Des paléontologues chinois ont identifié une nouvelle espèce de poisson blindé et sans mâchoire provenant de roches vieilles d'environ 419 millions d'années, dont le crâne avait la forme d'une aile de chauve-souris et dont la tête inhabituelle en faisait un planeur efficace dans les mers du Dévonien. L'article Rencontrez Bataspis crux, un poisson sans mâchoire qui a navigué dans les mers du Dévonien avec une tête de chauve-souris est apparu en premier sur Sci.News : Breaking Science News.
18/08/2026 sci-news ⚙ Traduction automatique
Un nouvel ichtyosaure du Jurassique supérieur des gisements allemands de Plattenkalk
Allemagne Jurassique Jurassique supérieur Tithonien fossile Aegirosaurus Ichthyosauria Jabalisaurus nouvelle espèce
Les scientifiques ont décrit une nouvelle espèce d’ichtyosaure jurassique du sud de l’Allemagne. La nouvelle espèce nommée Jabalisaurus tethyensis vivait il y a environ 149 millions d’années au Jurassique supérieur (stade faunique Tithonien). Remarquablement, certains fossiles attribués à Jabalisaurus tethyensis avaient déjà été classés comme Aegirosaurus. La recherche met en évidence la diversité cachée des ichtyosaures dans la célèbre
17/08/2026 everythingdinosaur ⚙ Traduction automatique
Une nouvelle espèce de la période glaciaire se cachait dans les fossiles des fosses de la Brea depuis des décennies
os Pléistocène fossile découverte nouvelle espèce
Les scientifiques ont découvert une nouvelle espèce d’amphibien éteinte cachée dans les collections de fossiles de La Brea Tar Pits à Los Angeles. Nommé Spea labreae, le crapaud de la période glaciaire est une découverte exceptionnellement rare : un seul autre amphibien éteint du Pléistocène a jamais été identifié en Amérique du Nord. Ses ossements étaient conservés dans des collections depuis les années 1950 avant qu'un chercheur ne remarque des caractéristiques qui le distinguaient des espèces connues.
16/08/2026 sciencedaily-paleo ⚙ Traduction automatique
Un fossile vieux de 30 ans cachait les os d'un mystérieux monstre marin ancien
os mâchoire Crétacé fossile Mosasaurus nouvelle espèce crâne
Des fossiles collectés à Osaka il y a plus de 30 ans ont révélé une surprise cachée à la vue de tous : quatre os jusqu'alors méconnus provenant d'un mosasaure géant du Crétacé. Parmi eux se trouve le premier prémaxillaire confirmé – l’os le plus en avant de la mâchoire supérieure – jamais identifié dans un fossile de mosasaure japonais. Plus intrigant encore, certaines parties du crâne présentent des caractéristiques anatomiques inhabituelles qui ne correspondent pas aux mosasaures connus, ce qui laisse penser que les restes appartiennent à une espèce entièrement nouvelle.
15/08/2026 sciencedaily ⚙ Traduction automatique
Un nouveau genre de dinosaure troodontidé du Nouveau-Mexique
os Mexique Campanien Crétacé Crétacé supérieur fossile Dinevenator Dinosauria Troodontidae nouvelle espèce crâne
Les paléontologues ont nommé une nouvelle espèce de dinosaure théropode du Nouveau-Mexique. Le dinosaure, Dinevenator Robustus, vivait il y a environ 73 millions d'années (stade faunique campanien du Crétacé supérieur). Les chercheurs ont identifié le dinosaure à partir d’un os fossile du crâne (un frontal) trouvé dans le nord-ouest du Nouveau-Mexique. Il représente un nouveau genre et une nouvelle espèce de troodontidé. Troodontidés
13/08/2026 everythingdinosaur ⚙ Traduction automatique
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