paléontologie
Des chercheurs du Musée d'histoire naturelle du Royaume-Uni ont remarqué pour la première fois quelques ossements dépassant d'un bloc rocheux lors d'une excursion sur l'île de Skye en 2006. Ce fossile s'est révélé être une nouvelle espèce de ptérosaure, baptisée "Ceoptera evansae". Ces reptiles volants - ptérosaure se traduit littéralement par "lézard à ailes" - ont existé du Trias supérieur jusqu'à l'extinction des dinosaures, il y a environ 66 millions d'années. Mais les traces fossiles fragmentaires qu'ils ont laissées au cours du Jurassique moyen nous ont laissé dans l'ignorance quant à le...
Euronews (French)
New York (AFP) - Two mounted dinosaur skeletons -- one a fierce flying reptile of the kind seen in the "Jurassic Park" movies and the other evocative of the Loch Ness monster -- will be auctioned off this month in New York, Sotheby's said Tuesday. The latter, called Nessie after the legendary elusive beast plying the depths of a Scottish lake, is estimated to draw between $600,000 and $800,000, Sotheby's said. A kind of dinosaur called a plesiosaur, it was last auctioned in Paris in 2010 and at the time had come from a private museum in Germany. The remains, which are nearly 11 feet (3.4 meter...
AFP
Washington (AFP) - Modern brains are younger than originally thought, possibly developing as recently as 1.5 million years ago, according to a study published Thursday -- after the earliest humans had already begun walking on two feet and had even started fanning out from Africa. Our first ancestors from the genus Homo emerged on the continent about 2.5 million years ago with primitive ape-like brains about half the size of those seen in today's humans. Scientists have been trying to solve a mystery for as long as our origin story has been known: Exactly when and where did the brain evolve in...
AFP
New York (AFP) - One of the most complete specimens of a T-Rex fossil in the world was sold for a record $31.8 million Tuesday by Christie's in New York, nearly quadrupling the previous highest price for a dinosaur at auction.The apex predator made mincemeat of Christie's opening price of between six and eight million dollars, showing off the lasting power of the T-Rex.It then shredded the previous record set by a specimen called Sue that was sold for $8.4 million in October 1997 by Sotheby's to the Field Museum of Natural History in Chicago.Only around 50 Tyrannosaurus fossils have been disco...
AFP
New York (AFP) - The skeleton of a 40-foot (12-meter) dinosaur nicknamed "Stan", one of the most complete Tyrannosaurus rex specimens ever found, will be auctioned in New York next month and could set a record for a sale of its kind.Discovered in 1987 near Buffalo, South Dakota, the 188-bone skeleton took more than three years to excavate and reconstruct by paleontologists from the state's Black Hills Geological Research Institute, where it has been exhibited since.Stan, who researchers estimate died around 60 million years ago aged about 20, has since been used to make replicas for dozens of ...
AFP
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