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fossile

Nature du spécimen

371 image(s) · 185 Actualités

Galerie d'images

Identifier: catalogueoffossi02bri (find matches) Title: Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker .. Year: 1888 (1880s) Authors: British Museum (Natural History). Dept. of Geology Lydekker, Richard, 1849-1915 Subjects: Reptiles, Fossil Amphibians, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: pterygian; from theKimeridge Clay of Ely. \. a, proximal, b, distal epiphysis ; c, shaft. 46792. Two still smaller specimens; from the Kimeridge Clay ofDevizes, Wiltshire. Cunnington Collection. R. 400. Two phalangeals; from the Oxford Clay of Weymouth,Dorsetshire. Presented by C. Westendarp, Esq., 1884. 150 SAUEOPTERIGIA. R. 1381. One longitudinal half of the humerus or femur of a me- (Ficj.) dium-sized form, with the inner surface cut and polished; from the Kimeridge Clay of Ely. This specimen is figured in the woodcut on the preceding page, and shows the two epiphyses almost meeting in the middle of the shaft. No history. R. 1381 a. The proximal half of a larger humerus or femur, longitu-dinally bisected; from the Kimeridge Clay of Ely. Thecontour of the proximal epiphysis is well displayed. No history. 46912. The proximal portion of a still larger humerus or femur,longitudinally bisected; from Shotover. The whole ofthe proximal epiphysis is displayed, of which the terminal Kg. 47. Text Appearing After Image: Sauropterygian mandibles.—A. Peloneustesphilarchus; from the Oxford Clay.\. B. Thaitmatosaurus indicus; from the Upper Jurassic of India. ).0. Pksiosaimcs dolichodirus; from the Lower Lias. f. (From the Kec.Geol. Surv. Ind.) PLESI0SAURID2E. 151 extremity appears to have been separated by a small va-cuity from that of the distal epiphysis. No history. 42097. One lateral half of a humerus or femur, with the inner sur- face cut; from the Neocomian bone-bed of Potton, Bed-fordshire. The extremity of one epiphysis is entire anddetached from the shaft, while a section is shown of thatat the opposite end. Purchased, 1870. 42098. A small imperfect femur, with the proximal epiphysis de- tached and lying loose in the cup of the shaft; fromPotton. Purchased, 1870. Genus PELONEUSTES, Lydekker \ Skull and teeth of the general type of Pliosaurus, but the mandible(fig. 47, A) with a longer symphysis, which includes more than adozen teeth. Neck short, with the anterior vertebras relativelyshort. Ve Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Identifier: catalogueoffossi02bri (find matches) Title: Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker .. Year: 1888 (1880s) Authors: British Museum (Natural History). Dept. of Geology Lydekker, Richard, 1849-1915 Subjects: Reptiles, Fossil Amphibians, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: pterygian; from theKimeridge Clay of Ely. \. a, proximal, b, distal epiphysis ; c, shaft. 46792. Two still smaller specimens; from the Kimeridge Clay ofDevizes, Wiltshire. Cunnington Collection. R. 400. Two phalangeals; from the Oxford Clay of Weymouth,Dorsetshire. Presented by C. Westendarp, Esq., 1884. 150 SAUEOPTERIGIA. R. 1381. One longitudinal half of the humerus or femur of a me- (Ficj.) dium-sized form, with the inner surface cut and polished; from the Kimeridge Clay of Ely. This specimen is figured in the woodcut on the preceding page, and shows the two epiphyses almost meeting in the middle of the shaft. No history. R. 1381 a. The proximal half of a larger humerus or femur, longitu-dinally bisected; from the Kimeridge Clay of Ely. Thecontour of the proximal epiphysis is well displayed. No history. 46912. The proximal portion of a still larger humerus or femur,longitudinally bisected; from Shotover. The whole ofthe proximal epiphysis is displayed, of which the terminal Kg. 47. Text Appearing After Image: Sauropterygian mandibles.—A. Peloneustesphilarchus; from the Oxford Clay.\. B. Thaitmatosaurus indicus; from the Upper Jurassic of India. ).0. Pksiosaimcs dolichodirus; from the Lower Lias. f. (From the Kec.Geol. Surv. Ind.) PLESI0SAURID2E. 151 extremity appears to have been separated by a small va-cuity from that of the distal epiphysis. No history. 42097. One lateral half of a humerus or femur, with the inner sur- face cut; from the Neocomian bone-bed of Potton, Bed-fordshire. The extremity of one epiphysis is entire anddetached from the shaft, while a section is shown of thatat the opposite end. Purchased, 1870. 42098. A small imperfect femur, with the proximal epiphysis de- tached and lying loose in the cup of the shaft; fromPotton. Purchased, 1870. Genus PELONEUSTES, Lydekker \ Skull and teeth of the general type of Pliosaurus, but the mandible(fig. 47, A) with a longer symphysis, which includes more than adozen teeth. Neck short, with the anterior vertebras relativelyshort. Ve Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

musée Oxford Clay fossile spécimen +2
Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: 78 MAEINE EEPTILES OF THE OXEOED CLAT. Test-fig. 30. Text Appearing After Image: aa. Coracoids of Peloneustes evansi: A, from front; B, from above. (E. 3897, 1 nat. size.) glenoid facet; p.e.a., postero-esternal angle; sc.f., facet for scapula; sym., symphysial surface. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: 78 MAEINE EEPTILES OF THE OXEOED CLAT. Test-fig. 30. Text Appearing After Image: aa. Coracoids of Peloneustes evansi: A, from front; B, from above. (E. 3897, 1 nat. size.) glenoid facet; p.e.a., postero-esternal angle; sc.f., facet for scapula; sym., symphysial surface. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

musée Oxford Clay fossile Peloneustes +1
Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL,MARINE REPT. OXFORD CLAY. PART II. PLATE IV. col. — v.orb. Text Appearing After Image: pas par. G.M.Woodward Aei.et litli. West.Newznsr. imp. PEEONEUSTES philarghus. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL,MARINE REPT. OXFORD CLAY. PART II. PLATE IV. col. — v.orb. Text Appearing After Image: pas par. G.M.Woodward Aei.et litli. West.Newznsr. imp. PEEONEUSTES philarghus. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

musée Oxford Clay fossile Peloneustes +1
Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL.MARINE REPT. OXFORD CLAY. PART II. FLATE II. Text Appearing After Image: G.M.Woodwa/p& del.etlitfL PLIOSAURUS PEROX. West, Newman imp. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL.MARINE REPT. OXFORD CLAY. PART II. FLATE II. Text Appearing After Image: G.M.Woodwa/p& del.etlitfL PLIOSAURUS PEROX. West, Newman imp. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

musée Oxford Clay fossile Liopleurodon +2
Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL.MARINE KEPT. OXFORD CLAY. PART II. PLATE I. pmcc. Text Appearing After Image: >p77ia:. G.M.Woodward del. etlibh. West, Newman imp. PLIOSAURUS FEROX. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Taxons Liopleurodon

Title: A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. Identifier: descriptivecatal02brit (find matches) Year: 1910 (1910s) Authors: British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924 Subjects: Reptiles, Fossil Publisher: London, Printed by order of the Trustees Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: CATAL.MARINE KEPT. OXFORD CLAY. PART II. PLATE I. pmcc. Text Appearing After Image: >p77ia:. G.M.Woodward del. etlibh. West, Newman imp. PLIOSAURUS FEROX. Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

musée Oxford Clay fossile Liopleurodon +2
Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

fossile Hainosaurus
Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

fossile Hainosaurus
Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

Fossil - Took The picture at Royal Belgian Institute of Natural Sciences, Brussels

fossile Hainosaurus
Fossil of Hainosaurus, an extinct reptile -- Took the photo at Natural History Museum of Bruxelles

Fossil of Hainosaurus, an extinct reptile -- Took the photo at Natural History Museum of Bruxelles

musée fossile Hainosaurus
Fossil of Anhanguera, an extinct reptile-- Took the photo at Natural History Museum, London

Fossil of Anhanguera, an extinct reptile-- Took the photo at Natural History Museum, London

musée fossile Anhanguera
Title: A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey .. Identifier: CUbiodiversity600397-9082 (find matches) Year: 1889 (1880s) Authors: Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey Subjects: Paleontology Publisher: Harrisburg, Board of Commissioners for the Geological Survey Contributing Library: Cornell University Library Digitizing Sponsor: Mann Library, Cornell View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: 697 Plec. Plectropterna angusta, Hitchcock, Icht. Mass. page 110, lias. f-) itch cock ^ Idithuolo^ij McLSS. Text Appearing After Image: I'lfrtroplerria, Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Taxons Plectropterna

Title: A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey .. Identifier: CUbiodiversity600397-9082 (find matches) Year: 1889 (1880s) Authors: Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey Subjects: Paleontology Publisher: Harrisburg, Board of Commissioners for the Geological Survey Contributing Library: Cornell University Library Digitizing Sponsor: Mann Library, Cornell View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: 697 Plec. Plectropterna angusta, Hitchcock, Icht. Mass. page 110, lias. f-) itch cock ^ Idithuolo^ij McLSS. Text Appearing After Image: I'lfrtroplerria, Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.

fossile Plectropterna
Crâne de mosasaure d'espèce Platecarpus tympaniticus (squamates, mosasaures). Provenance : Smoky Hill Chalk, Kansas (aux Etats-Unis). Date : Crétacé supérieur, période du Campanien, 88 millions d'années avant notre ère. Collections du Muséum national d'histoire naturelle de Paris (France). Exposé à l'occasion de l'exposition "Un T-Rex à Paris" au Muséum national d'histoire naturelle de Paris (France) du 6 juin au 2 septembre 2018. Légende du fossile dans cette exposition : "Les mosasaures ne sont pas des dinosaures mais des reptiles marins, très répandus à la fin du Crétacé. Certains genres comme Globidens et Halisaurus sont connus aussi bien aux Etats-Unis qu'au Maroc. Ces animaux étaient d'excellents nageurs, capables de traverser l'Atlantique."

Crâne de mosasaure d'espèce Platecarpus tympaniticus (squamates, mosasaures). Provenance : Smoky Hill Chalk, Kansas (aux Etats-Unis). Date : Crétacé supérieur, période du Campanien, 88 millions d'années avant notre ère. Collections du Muséum national d'histoire naturelle de Paris (France). Exposé à l'occasion de l'exposition "Un T-Rex à Paris" au Muséum national d'histoire naturelle de Paris (France) du 6 juin au 2 septembre 2018. Légende du fossile dans cette exposition : "Les mosasaures ne sont pas des dinosaures mais des reptiles marins, très répandus à la fin du Crétacé. Certains genres comme Globidens et Halisaurus sont connus aussi bien aux Etats-Unis qu'au Maroc. Ces animaux étaient d'excellents nageurs, capables de traverser l'Atlantique."

France Maroc Campanien Crétacé +8
Fragmentary fossils of various tylosaurines MCM.M0009 (A ; Taniwhasaurus 'mikasaensis'), SAM-PK-5265 (B ; Taniwhasaurus 'capensis') and MNHN 1896-15 (C ; Tylosaurus gaudryi).

Fragmentary fossils of various tylosaurines MCM.M0009 (A ; Taniwhasaurus 'mikasaensis'), SAM-PK-5265 (B ; Taniwhasaurus 'capensis') and MNHN 1896-15 (C ; Tylosaurus gaudryi).

fossile Hainosaurus Taniwhasaurus Tylosaurus
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
Fossil of Carinodens, an extinct mosasaur- Took the photo at Natural History Museum of Maastricht

Fossil of Carinodens, an extinct mosasaur- Took the photo at Natural History Museum of Maastricht

musée fossile Carinodens
Restoration of Ambopteryx longibrachium based on known fossil elements

Restoration of Ambopteryx longibrachium based on known fossil elements

fossile Alnashetri Ambopteryx
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Actualités

Ce fossile prouve enfin une théorie vieille de 200 ans
Ce fossile prouve enfin une théorie vieille de 200 ans
reproduction fossile évolution mammifères
Ce petit nodule fossilisé a été découvert en 2008. Il vient seulement de livrer ses secrets : de quoi valider une théorie vieille de près de deux siècles sur l’évolution de la reproduction chez les ancêtres des mammifères.
28/04/2026 sciencesetavenir
Ce petit mammifère a survécu à l'apocalypse des dinosaures et a changé la vie sur Terre
fossile Dinosauria extinction mammifères
Un mammifère préhistorique récemment découvert pourrait détenir des indices sur la façon dont la vie a survécu à l’extinction des dinosaures. La minuscule espèce, Cimolodon desosai, vivait il y a 75 millions d'années et possédait des caractéristiques, comme un petit corps et un régime alimentaire varié, qui augmentaient probablement ses chances de survie. Trouvé en Basse-Californie, le fossile comprend de rares restes squelettiques qui révèlent comment il se déplaçait et vivait. Les chercheurs pensent que sa lignée a aidé les mammifères à endurer l’un des événements les plus meurtriers sur Terre.
27/04/2026 sciencedaily ⚙ Traduction automatique
Les vaisseaux sanguins découverts dans les os de T. rex réécrivent la science des dinosaures
os ADN fossile Dinosauria Tyrannosaurus
L’ADN des dinosaures est peut-être encore hors de portée, mais les scientifiques découvrent quelque chose de presque aussi passionnant : d’anciens vaisseaux sanguins cachés dans des os fossilisés. Dans un énorme Tyrannosaurus rex surnommé Scotty, les chercheurs ont découvert un réseau de vaisseaux préservés dans une côte qui s'était fracturée et avait commencé à guérir il y a 66 millions d'années. Grâce aux puissants rayons X synchrotron des accélérateurs de particules, ils ont pu observer l'intérieur du fossile dense sans l'endommager, révélant des structures complexes et riches en fer.
26/04/2026 sciencedaily ⚙ Traduction automatique
Des scientifiques viennent de découvrir que l’Afrique est plus proche de l’éclatement que nous le pensions
fossile formation
Sous le rift Turkana, en Afrique de l’Est, les scientifiques ont découvert que la croûte s’amincit jusqu’à atteindre un point critique, ce qui suggère que le continent se désagrège progressivement. Ce processus de « rétrécissement » marque un stade avancé de rifting qui pourrait éventuellement conduire à la formation d’un nouvel océan dans des millions d’années. Étonnamment, les mêmes forces géologiques qui divisent la terre peuvent également expliquer pourquoi la région détient un registre fossile si riche. Au lieu d'être le berceau de l'humanité, Turkana pourrait bien être simplement le lieu où
25/04/2026 sciencedaily-paleo ⚙ Traduction automatique
Les poulpes géants régnaient sur les océans il y a 100 millions d'années, selon une étude
mâchoire prédateur proie fossile Dinosauria étude
Des poulpes géants et redoutables auraient pu autrefois régner sur les mers anciennes, selon de nouvelles recherches qui renversent le scénario de leur passé évolutif. En découvrant des mâchoires fossiles superbement préservées cachées dans la roche, les scientifiques ont révélé que les premières pieuvres de l’âge des dinosaures n’étaient pas des vagabonds timides et au corps mou : c’étaient d’énormes prédateurs au sommet, pouvant s’étendre jusqu’à 20 mètres de long et écrasant leurs proies avec de puissantes morsures.
25/04/2026 sciencedaily-paleo ⚙ Traduction automatique
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