Maastrichtien

Intervalle géologique

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Map of Cretaceous-aged dinosaur fossil localities of Mongolia.
Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].
Formations Baynshire

Map of Cretaceous-aged dinosaur fossil localities of Mongolia. Gobihadros mongoliensis was collected from Bayshin Tsav in Area C. Open squares indicate Late Cretaceous sites, solid squares represent Early Cretaceous localities. Abbreviations: A, Localities of Western Gobi Desert in Mongolia, mainly group of localities of Nemegtian age (early Maastrichtian), Late Cretaceous; B, Localities of Central Gobi Desert in Mongolia, mainly Djadokhtian age (Campanian), Late Cretaceous; C & D- Localities of Eastern Gobi Desert in Mongolia, mainly Baynshirenian age (Cenomanian-Santonian), Late Cretaceous. Figure has been modified from Tsogtbaatar et al. 2014, Figure 1 [24].

Mongolie Campanien Cénomanien Crétacé +8
Life reconstruction of a pair of Galgadraco zephyrius in a late Maastrichtian environment, showcasing the palaeobiota of the Serra da Galga Geosite. Artwork by Matheus Gadelha.
Formations Serra da Galga

Life reconstruction of a pair of Galgadraco zephyrius in a late Maastrichtian environment, showcasing the palaeobiota of the Serra da Galga Geosite. Artwork by Matheus Gadelha.

Serra da Galga Maastrichtien
Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America.

Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America.

Crétacé Maastrichtien Plotosaurus
Life restoration of the mosasaurine mosasaurid Eremiasaurus, with unknown portions and soft tissues based primarily on Prognathodon and supplemented with Mosasaurus where needed.
References
Leblanc, A.R.H.; Caldwell, M.W.; Bardet, N. (2012). "A new mosasaurine from the Maastrichtian (Upper Cretaceous) phosphates of Morocco and its implications for mosasaurine systematics". Journal of Vertebrate Paleontology 32 (1): 82–104.
Lindgren, J.; Kaddumi, H.; Polcyn, M. (2013). "Soft tissue preservation in a fossil marine lizard with a bilobed tail fin". Nature Communications 4: 2423. DOI:10.1038/ncomms3423.
Konishi, T.; Brinkman, D.; Massare, J.A.; Caldwell, M.W. (2011). "New exceptional specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the upper Campanian of Alberta, Canada, and the systematics and ecology of the genus". Journal of Vertebrate Paleontology 31 (5): 1026–1046.
Russell, D.A. (1967). "Systematics and morphology of American mosasaurs". Bulletin of the Peabody Museum of Natural History 23: 1–241.
Taxons Eremiasaurus

Life restoration of the mosasaurine mosasaurid Eremiasaurus, with unknown portions and soft tissues based primarily on Prognathodon and supplemented with Mosasaurus where needed. References Leblanc, A.R.H.; Caldwell, M.W.; Bardet, N. (2012). "A new mosasaurine from the Maastrichtian (Upper Cretaceous) phosphates of Morocco and its implications for mosasaurine systematics". Journal of Vertebrate Paleontology 32 (1): 82–104. Lindgren, J.; Kaddumi, H.; Polcyn, M. (2013). "Soft tissue preservation in a fossil marine lizard with a bilobed tail fin". Nature Communications 4: 2423. DOI:10.1038/ncomms3423. Konishi, T.; Brinkman, D.; Massare, J.A.; Caldwell, M.W. (2011). "New exceptional specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the upper Campanian of Alberta, Canada, and the systematics and ecology of the genus". Journal of Vertebrate Paleontology 31 (5): 1026–1046. Russell, D.A. (1967). "Systematics and morphology of American mosasaurs". Bulletin of the Peabody Museum of Natural History 23: 1–241.

tissus écologie musée Canada +11
Kaikaifilu pectorals, done on inkscape.
Based on pictures and diagrams from "Kaikaifilu hervei  gen. et sp. nov., a new large mosasaur (Squamata, Mosasauridae) from the upper Maastrichtian of Antarctica. Cretaceous Research".

Kaikaifilu pectorals, done on inkscape. Based on pictures and diagrams from "Kaikaifilu hervei gen. et sp. nov., a new large mosasaur (Squamata, Mosasauridae) from the upper Maastrichtian of Antarctica. Cretaceous Research".

Antarctique Crétacé Maastrichtien Kaikaifilu +1
Reconstructed skull of Jaxartosaurus aralensis Riabinin, 1937. Only a posterior portion of the skull, as well as a surangular is known, with the rest of the skull being based mostly upon File:Aralosaurus skull.png. Jaxartosaurus is currently classified as a basal lambeosaurine, more derived than Aralosaurini, but more primitive than Parasaurolophini and Lambeosaurini. It might be more derived than Tsintaosaurini (Godefroit et al., 2004). References: 
Riabinin, A.M. (1937). "A New Finding of Dinosaurs in the Trans-Baikal Region". Ezhegodn. Vserossijskogo Palaeont. Obstcg. 11: 142–144
Godefroit, P.; Bolotsky, Y.L.; Van Itterbeeck, J. (2004). "The lambeosaurine dinosaur Amurosaurus riabinini, from the
Maastrichtian of Far Eastern Russia". Acta Palaeontologica Polonica 49(4): 585–618
Taxons Jaxartosaurus

Reconstructed skull of Jaxartosaurus aralensis Riabinin, 1937. Only a posterior portion of the skull, as well as a surangular is known, with the rest of the skull being based mostly upon File:Aralosaurus skull.png. Jaxartosaurus is currently classified as a basal lambeosaurine, more derived than Aralosaurini, but more primitive than Parasaurolophini and Lambeosaurini. It might be more derived than Tsintaosaurini (Godefroit et al., 2004). References: Riabinin, A.M. (1937). "A New Finding of Dinosaurs in the Trans-Baikal Region". Ezhegodn. Vserossijskogo Palaeont. Obstcg. 11: 142–144 Godefroit, P.; Bolotsky, Y.L.; Van Itterbeeck, J. (2004). "The lambeosaurine dinosaur Amurosaurus riabinini, from the Maastrichtian of Far Eastern Russia". Acta Palaeontologica Polonica 49(4): 585–618

Russie Maastrichtien Amurosaurus Aralosaurini +7
Paludititan nalatzensis (UBB NVM1-43), Maastrichtian, Haţeg Basin, Romania. Scale bar equals 10 cm.

Paludititan nalatzensis (UBB NVM1-43), Maastrichtian, Haţeg Basin, Romania. Scale bar equals 10 cm.

écaille Roumanie Maastrichtien Paludititan
Skull of the mosasaurid squamate Thalassotitan atrox from the late Maastrichtian of Sidi Daoui, Ouled Abdoun Basin, Khouribga Province, Morocco, North Africa.

Skull of the mosasaurid squamate Thalassotitan atrox from the late Maastrichtian of Sidi Daoui, Ouled Abdoun Basin, Khouribga Province, Morocco, North Africa.

Maroc Maastrichtien Mosasauridae Thalassotitan +1
Digital illustration of the Sauropod Dinosaur Isisaurus colberti from the Late Cretaceous (Maastrichtian) of India (72.2-66 MYA). References include Jain & Bandyopadhyay (1997), several papers from Wilson et al. and skeletal reconstruction by Scott Hartman.
Illustrated by Ansh Saxena.
About Isisaurus–

Isisaurus colberti (=Titanosaurus colberti) was a species of Titanosaurian Sauropod Dinosaur from the Late Cretaceous (Maastrichtian) age in the Indian Subcontinent. Isisaurus lived sympatrically with another Titanosaurian Sauropod Jainosaurus. It also lived alongside Theropods like Rajasaurus, Rahiolisaurus, Indosuchus etc. Remains of Isisaurus come from the Lameta formation of Central India.

Digital illustration of the Sauropod Dinosaur Isisaurus colberti from the Late Cretaceous (Maastrichtian) of India (72.2-66 MYA). References include Jain & Bandyopadhyay (1997), several papers from Wilson et al. and skeletal reconstruction by Scott Hartman. Illustrated by Ansh Saxena. About Isisaurus– Isisaurus colberti (=Titanosaurus colberti) was a species of Titanosaurian Sauropod Dinosaur from the Late Cretaceous (Maastrichtian) age in the Indian Subcontinent. Isisaurus lived sympatrically with another Titanosaurian Sauropod Jainosaurus. It also lived alongside Theropods like Rajasaurus, Rahiolisaurus, Indosuchus etc. Remains of Isisaurus come from the Lameta formation of Central India.

Inde Lameta Crétacé Crétacé supérieur +9
Drawing of lectoholotype skull BMNH R.3386 (desigated by Weishampel et al., 1993)[1][2] of Limnosaurus transsylvanicus NOPCSA 1900 (later renamed Telmatosaurus transsylvanicus), a basal hadrosaurid dinosaur from the Late Maastrichtian (latest Upper Cretaceous) Sanpetru Formation of West Central Romania.
Taxons Telmatosaurus

Drawing of lectoholotype skull BMNH R.3386 (desigated by Weishampel et al., 1993)[1][2] of Limnosaurus transsylvanicus NOPCSA 1900 (later renamed Telmatosaurus transsylvanicus), a basal hadrosaurid dinosaur from the Late Maastrichtian (latest Upper Cretaceous) Sanpetru Formation of West Central Romania.

dessin Roumanie Crétacé Maastrichtien +6
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Actualités

New Duck-Billed Dinosaur Unearthed in Romania
Un nouveau dinosaure à bec de canard découvert en Roumanie
bassin Hongrie Italie Roumanie Royaume-Uni Maastrichtien Dinosauria Kryptohadros nouvelle espèce squelette
Une équipe internationale de paléontologues de Roumanie, de Hongrie et d'Italie a identifié un nouveau genre et une nouvelle espèce de dinosaure herbivore à bec de canard à partir d'un squelette incomplet découvert dans le bassin de Hațeg, une dépression en forme de bol dans les Carpates de l'actuelle Roumanie. L'article Un nouveau dinosaure à bec de canard découvert en Roumanie est apparu en premier sur Sci.News : Breaking Science News.
16/06/2026 sci-news ⚙ Traduction automatique
Fossil Discovery in Patagonia Reveals New Species of Horned Turtle
La découverte de fossiles en Patagonie révèle de nouvelles espèces de tortues à cornes
Argentine Maastrichtien fossile Dinosauria découverte extinction nouvelle espèce autres reptiles
Les paléontologues ont identifié une nouvelle espèce de tortue méiolaniforme du nord de la Patagonie, en Argentine, qui vivait à l'époque maastrichtienne, juste avant l'extinction massive déclenchée par un astéroïde qui a anéanti tous les dinosaures non aviaires. L'article La découverte de fossiles en Patagonie révèle de nouvelles espèces de tortues à cornes apparaît en premier sur Sci.News : Breaking Science News.
09/06/2026 sci-news ⚙ Traduction automatique