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注册日期: 2011-8-29
发贴数: 57
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This image provided by the National Park Service on Tuesday, Feb. Devin Hester Bears Jersey Authentic . 23, 2010 shows the right and left views of the complete skull of the newly-discovered dinosaur Abydosaurus mcintoshi. Paleontologists say this new species of dinosaur was found in Dinosaur National Monument, Utah hidden in slabs of sandstone so hard they had to use explosives to free some of the fossils.[PhotoAgencies] SALT LAKE CITY — Fossils of a previously undiscovered species of dinosaur have been found in slabs of Utah sandstone that were so hard that explosives had to be used to free some of the remains, scientists said Tuesday. The bones found at Dinosaur National Monument belonged to a type of sauropod — long-necked plant-eaters that were said to be the largest animal ever to roam land. The discovery included two complete skulls from other types of sauropods — an extremely rare find, scientists said. The fossils offer fresh insight into lives of dinosaurs some 105 million years ago, including the evolution of sauropod teeth, which reveal eating habits and other information, said Dan Chure, a paleontologist at the monument that straddles the Utah-Colorado border. You can hardly overstate the significance of these fossils, he said. Of the 120 or so known species of sauropods, complete skulls have been found for just eight. Thats mostly because their skulls were made of thin, fragile bones bound by soft tissue that were easily destroyed after death. This is absolutely No. 1 in terms of projects Ive had the opportunity to work on, said Brooks Britt, a Brigham Young University paleontologist who co-authored a study on the fossils along with University of Michigan researchers. Related readings: Dinosaur footprint cluster found in Shandong Dinosaur tail feathers were carrot colored, study says Dinosaur Culture Festival of Chuxiong Scientists: New dinosaur species found in SAfrica The new species is called Abydosaurus mcintoshi. Researchers say its part of the larger brachiosaurus family, hulking four-legged vegetarians that include sauropods. The findings are being published this week in the peer-reviewed science journal Naturwissenschaften. The bones came from a quarry known as DNM 16. It was discovered in 1977, but intensive excavations didnt get started until the late 1990s. The skulls were found in 2005. Tantalized researchers, though, were stymied by rocks around the bones that were so hard that workers were unable to break through, even with use of a jackhammers and concrete saws. Last year, a blasting crew from Rocky Mountain National Park in Colorado spent three days at the quarry detonating handset explosives that loosened the rock but didnt damage the bones. That allowed scientists to pluck out other fossils, including leg bones, shoulder blades and other parts. Paleontologists believe they have the remains of at least four dinosaurs at the site. All appear to be juveniles and were likely around 25 feet long, Britt said. We dont know how much bigger they could get, Britt said. The skulls — including one thats complete and intact and another thats complete but in pieces — offer new clues about how sauropods ate their food. They didnt chew it. They just grabbed it and swallowed it, Britt said. Early sauropods had wide teeth. Later versions had narrow, pencil-like teeth. The abydosaurus teeth are in-between, which will help scientists trace how their eating techniques and diet evolved. Abydosaurus is the right dinosaur at the right time to answer some of these questions, University of Michigan researcher John Whitlock said in a statement. The find may offer the most complete view yet of certain sauropods roaming North America from the Lower Cretaceous period spanning roughly 145 million to 99 million years ago, said Jim Kirkland, Utahs state paleontologist, who was not involved in the discovery announced Tuesday. The fossils are on temporary display at BYUs Museum of Paleontology. Super Bowl Jordy Nelson Jersey .[PhotoAgencies] Mining giant seeks to attract Asian investors by increasing regional profile HONG KONG - Vale SA, the worlds biggest exporter of iron ore, debuted on the Hong Kong Stock Exchange on Wednesday, as the Rio de Janeiro-based company seeks to increase its profile in its biggest market. Cleveland Stallworths Stallworth Jersey . Ballouchy sent a header off Joel Lindperes corner kick into the upper centre of the net. "It was a play we have been working on," Ballouchy said. cheap jerseys . Shes also worked with Hollywood filmmakers. Now, the Chinese actress says shes ready for anything. Actresses Andie MacDowell (L), Gong Li (C), and Kerry Washington arrive for the evening gala screening of Chinese director Wong Kar Wais in-competition film My Blueberry Nights at the 60th Cannes Film Festival May 16, 2007. Replicas Dallas Cowboys Jersey . Pete Sampras, of the United States, right, smiles at Switzerlands Roger Federer before the start of an invitational exhibition tennis match in Kuala Lumpur, Malaysia, Thursday, Nov. 22, 2007. [Agencies] The top-ranked Swiss star won their last encounter 6-4, 6-3 in South Korea on Tuesday, but the latest clash in Malaysia took nearly 90 minutes and proved a bit more difficult. Peppers Jersey .C. -- Isabelle Beisiegel became the first woman to successfully achieve a players card on a mens professional golf tour Friday after the Montreal native tied for ninth place in the Canadian Tours Spring Qualifying School. DENVER (AP) -Joe Sakic would typically rather retreat from the spotlight than bask in it. Always a humble and reserved player, the longtime Colorado Avalanche captain doesnt like a fuss to be made over him. He made an exception Thursday night. This was his evening. Sakics No. 19 sweater was raised to the rafters at Pepsi Center before the season opener against San Jose. His number is just the third retired since the Avalanche relocated to Denver in 1995, joining Patrick Roy (33) and Ray Bourque (77). The capacity crowd gave Sakic numerous ovations during a lengthy ceremony that featured a look back on his 20-year career, video highlights, and a speech from team president Pierre Lacroix. The current cast of Avalanche players all came out to watch the show, sitting on the bench decked out in Sakic jerseys. San Jose defenseman Rob Blake took in the celebration as well, listening as Sakic delivered his speech. Blake helped Sakic and the Avalanche win a Stanley Cup title in 2001. Usually not one for speeches, Sakic enjoyed this moment. He was back on the ice, even if it was in a dark suit and purple tie. I didnt think Id be able to hold up, he said. As soon as I got on the ice I felt comfortable. It was great. In the middle of his talk, though, a fan blurted out, One more time, Joe! I dont know if I can do that, Sakic responded. Unlike his retirement speech in July, Sakic kept the tears at bay. Not that it was easy. Sakic had a camera following him as he made his way from outside the arena to center ice, his every movement captured and shown on the big screen inside. Kevin Greene Jerseys. He greeted coaches in the hallway and then walked into the Avalanche dressing room, where his former locker had his jersey hanging on a hook. The stall is his - forever. Its a gift from the team. They didnt even give me a heads-up on that so when I walked in the room and saw that, I did a double take, Sakic said. When I saw it I almost broke down. Then I saw (Adam) Foote coming over and I was like, Uh oh, cameras are on. I cant cry. Never in my dreams could I imagine that. Sakic walked out of the dressing room and onto the ice, waving to the crowd as he sauntered along the burgundy carpet to where his family, Lacroix and team owner Stanley Kroenke were waiting. A few words, more highlights, a couple of gifts - including two paintings - another round of ovations, his jersey raised to the rafters and then it was over. Just like that, the team said farewell to the face of the franchise. Sakic leaves the game among the NHLs career scoring leaders, winding up eighth in points (1,641), 11th in assists (1,016) and 14th in goals (625). He also guided the team to two Stanley Cup titles, won league MVP honors in 2001, and captured an Olympic gold medal as a member of Team Canada in 2002. Any regrets as he made his way to the ice? I know I made the right decision, Sakic said. Hockey is my life. Its given me everything and Im so lucky to play it. When its time to go, its time to go. ' ' '
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主题: He also guided the team to two Stanley Cu
