ડાયનાસોર: આવૃત્તિઓ વચ્ચેનો તફાવત

ડાયનાસોર એ "સરિસ્રુપો" ની પેટા જાતી છે. લગભગ ૧૬૦ કરોડ વર્ષો સુધી પ્રુથ્વી પર તેમનુ રાજ હતું. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period (about 230 million years ago) until the end of the Cretaceous period (about 65 million years ago), when the Cretaceous–Tertiary extinction event caused the extinction of most dinosaur species, except for some birds. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period, and most paleontologists regard them as the only group of dinosaurs to have survived until the present day.[1]