yes it did because i went on a better website and found dht out.... duhhh
1957 when the dinosaurs became extinct
No. Sharks appeared on earth long before the first dinosaurs did.
No no no the first shark appeared in the jurassic period.
One reason is that there were a lot of fossils in many layers of rock and then suddenly, there are a lot fewer. Also, there don't appear to be many dinosaurs alive today. So, they went extinct. Do you really mean "how" did the dinosaurs go extinct?
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
Paleontologist James Kirkland was one of the first scientists to theorize that the dinosaurs became extinct because of an asteroid that slammed into the earth. It didn't take long for other scientists to come to the same conclusion and the theory is now widely accepted.
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
They appear in the fossil record in the late Triassic about 230 million years ago and go extinct around 65 mya.
Dinosaurs evolved and then became extinct long before man walked the Earth.245 mya (million years ago) dinosaurs evolved.208 mya birds evolved.65 mya dinosaurs became extinct.80 thousand years ago humans evolved on the plains of Africa.
First of all, dinosaurs are extinct. Approximatively 65 million years ago, the dinosaurs became extinct by what most people believe was a large meteorite which hit Earth and caused an Ice Age. Ash and dust covered the sun causing the Ice Age. Secondly, dinosaurs did not eat chocolate (chocolate was not in that time period) They ate other dinosaurs and plants depending on if they were carnivorous or herbivorous.
The first non-avian dinosaurs appeared around 230 million years ago, give or take a few million years, and they became extinct 65.5 million years ago. But another group of dinosaurs (avian dinosaurs or birds) still exist.
The first dinosaurs appeared on earth about 250 million years ago just after the Permian-Triassic mass extinction. The Triassic dinosaurs weren't too fierce and they were mainly neutrally defensive, which means they don't attack unless provoked.