Dinosaurs are a various institution of reptiles of the clade Dinosauria. They first seemed for the duration of the Triassic period, among 243 and 233.23 million years ago, despite the fact that the exact foundation and timing of the evolution of dinosaurs is the challenge of lively studies. They became the dominant terrestrial vertebrates after the Triassic–Jurassic extinction occasion 201 million years ago; their dominance persisted via the Jurassic and Cretaceous periods. opposite genetic engineering and the fossil document both demonstrate that birds are modern feathered dinosaurs, having evolved from in advance theropods at some point of the past due Jurassic duration. As such, birds have been the simplest dinosaur lineage to live to tell the tale the Cretaceous–Paleogene extinction event 66 million years ago. Dinosaurs can therefore be divided into avian dinosaurs, or birds; and non-avian dinosaurs, that are all dinosaurs aside from birds. this newsletter deals broadly speaking with non-avian dinosaurs
Gigantoraptor is a genus of large oviraptorosaurian theropod dinosaur
Carcharodontosaurus is a genus of carnivorous carcharodontosaurid dinosaurs that existed during the Cenomanian level of the mid-Cretaceous duration.