Artwork of a pair of dromaeosaurid dinosaurs righting. This is a diverse group that includes such animals as velociraptor, dakotaraptor and dineobellator. Velociraptor lived during the late Cretaceous period in Mongolia and China, but other dinosaurs in this group, also called raptors, lived all over the world. More and more scientists are coming to believe that many of them had feathers, or at least feathery integuments