Dinosaurs originated in Triassic period 230 million years ago and went extinct in the Cretaceous period i.e. 65 million years ago.
Triassic
Triassic
Dinosaurs and ammonoids appeared in the Triassic period.
1st mammals & dinosaurs
Dinosaurs and ammonoids appeared in the Triassic period.
Yes, the first dinosaurs evolved in the Triassic period. The earliest dinosaurs that have been discovered are Eoraptor and Herrerasaurus, which lived 231.4 million years ago.
The earliest period that dinosaurs existed was the Triassic period, some 225 million years ago. These were not the huge dinosaurs of the later period. Most dinosaurs of that age were small creatures that ate meat and walked on hind legs. Shaaron
The Triassic Period ended 201.3 million years ago. It was the period in which the first dinosaurs evolved. The Triassic was followed by the Jurassic period.
The "Age of Dinosaurs" came to an end with the extinction event at the end of the Cretaceous.
None-avian dinosaurs first appeared in the Triassic period and were the dominant land vertebrates through the Jurassic and Cretaceous periods. At the end of the Cretaceous period, 65.5 million years ago, all non-avian dinosaurs went extinct. Birds, which are now classified as dinosaurs, continue to live to his day.
The Jurassic Period followed the Triassic.
Cretaceous.