Science news articles about 'dinosaur groups'

... plans) and evolving at similar rates until rapid global warming spurred extinction of most groups (except crocodiles) while nearly all dinosaur groups survived.

... added: "It just wasn't a case of dinosaurs exploding onto the scene because of a special ... behind. The rapid expansion of carnivorous and armoured dinosaur groups did not happen until after the much ...

... the dinosaurs described in the Villar del Arzobispo Formation in Riodeva". Plant-eating dinosaur groups (phytophages) discovered in the deposit to date have been identified as sauropods, stegosaurids ...

... that Triceratops juveniles congregated in small herds, a social behavior increasingly identified in other dinosaur groups, such as Psittacosaurus, a small cousin of Triceratops that lived in Asia. " ...