Ritchie Hall | Earth, Energy & Environment Center 1414 Naismith Drive, Room 254 Lawrence, KS 66045 geology@ku.edu 785-864-4974 Other geologists say they can't shake a sense of suspicion about DePalma himself, who, along with his Ph.D. work, is also a curator at the Palm Beach Museum of Natural History in Wellington, Florida. If the team, led by Robert DePalma, a graduate student in paleontology at the University of Kansas in Lawrence, is correct, it has uncovered a record of apocalyptic destruction 3000 kilometers from Chicxulub. Scarred Duckbill Dinosaur Escaped T. Rex Attack - National Geographic Some scientists say this destroyed the dinosaurs; others believe they thrived during the period. But just one dinosaur bone is discussed in the PNAS studyand it is mentioned in a supplement document rather than in the paper itself. These powerful creatures prowled the Earth for about 165 million years before mysteriously disappearing (via U.S. Geological Survey). Did the Dinosaurs Die on a Pleasant North Dakota Spring Day? Victoria Wicks: DePalma's name is listed first on the research article published in April last year, and he has been the primary spokesman on the story . . One of these is whether dinosaurs were already declining at the time of the event due to ongoing volcanic climate change. He had already named the genus Dakotaraptor when others identified it as belonging to a prehistoric turtle. A bad day for dinosaurs was the subject of an engaging hour-and-a-half for both paleontologists and NASA researchers. Geologists have theorized that the impact, near what is now the town of Chicxulub on Mexico's Yucatn Peninsula, played a role in the mass extinction at the end of the Cretaceous period, when all the dinosaurs (except birds) and much other life on Earth vanished. The skull of the scarred Edmontosaurus also showed signs of trauma, and from the size and shape of the marks on the bone, Rothschild and fellow co-author Robert DePalma, a paleontologist at the . Trapped in the debris is a jumbled mess of fossils, including freshwater sturgeon that apparently choked to death on glassy particles raining out of the sky from the fireball lofted by the impact.
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