Evolutionary Boom in the Cretaceous Period Left out the Dinosaurs

The Cretaceous period was such a good time for evolution that researchers talk about the "Cretaceous Terrestrial Revolution," when as an explosion of new plant and animal species appeared. But researchers say that a detailed analysis of dinosaur diversity during this period debunks the prevailing theory that dinosaurs took part in this evolutionary spree; instead, their rapid evolution had taken place millions of years before.