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New evidence suggests comet or asteroid impact was last straw for dinosaurs
- tokenadult 14y agoBrian Switek is a science writer who specializes in writing about dinosaurs. He keeps up with all the professional literature on the subject. His recent article in Slate, "What Really Killed the Dinosaurs? 'An asteroid 65 million years ago is no longer enough," http://www.slate.com/articles/health_and_science/animal_forecast/2013/02/dinosaur_extinction_was_an_asteroid_the_only_cause_of_the_cretaceous_mass.html http://www.slate.com/articles/health_and_science/animal_fore... goes into detail about the anomalies in the fossil record of the K/Pg mass extinction, the issues of dating the asteroid impact, and other likely contributors to the environmental stress that made many lineages on land and at sea go extinct at approximately the time when the non-avian dinosaurs went extinct.