Fossils discovered in South America are evidence of true survivors: a new species of lizardlike reptiles that lived through the event that killed the dinosaurs. K. peligrensis was a rhynchocephalian, a group of reptiles that was quite diverse worldwide until the end of the Cretaceous Period. Researchers believed that all other rhynchocephalians died out 66 million years ago in South America, swept away along with the dinosaurs during the mass extinction at the end of the Cretaceous. "We thought that they became extinct, but well, here they are," said study researcher Sebastián Apesteguía, a paleontologist at Universidad Maimonides in Buenos Aires.
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