225,000,000 years ago
dinosaurs lived for millions of years the tuara is the last living dinosaur
we dont even know that were there any dinosaurs because in our holy book Quran ........it has nothing about dinosaurs . so dinosaurs came just after a few animals on earth .
15th century when dinosaurs walked the earth.
Dinosaurs appear in the fossil records in the late triassic period about 230 million years ago and became extict (except birds)at the end of the cretaceous period 65 million years ago.
The dinosaurs died out because of starvation. Crocodiles survived the mass extinction that wiped out the dinosaurs for two reasons.They are cold blooded, so they eat less.They are capable of lowering their metabolism and going as long as a year without food.
Towards the middle of the Cretaceous Period, dinosaurs had occupied every single continent, including the Antarctic and the poles. Finding an animal as large as a dinosaur at the south pole wouldn't be that big of a surprise, considering that the Earth was much warmer back then and that ice only came at the poles only for a few months every year. If the dinosaurs could migrate or hibernate, they could have lived anywhere on the globe.
Most dinosaurs lived in warm climates where there wasn't snow. However, a few types have been found in the Arctic and Antarctica, which was cold (though not as cold) even back then. There is evidence that at least some species of dinosaurs stayed in these cold climates year-round. If they did, then I think the odds are that these dinosaurs would have eaten snow at times to rehydrate.
it marks the end of the 10th year on earth because your first birthday marks the end of your first year on earth and it continues from there.
Dodo birds got extinct at around 1930.
The year that you may not be able to live on Earth anymore is unknown. It was said that the Earth was going to end in 2012 and never did. It could be another thousand years before the Earth is unable to be lived on.
The first date has to be an estimate, but since the dinosaurs effectively dominated the mammals by the start of the Jurassic (201 mya) we could reasonably credit them with 136 million years "in charge" using 65 mya (the end of the Cretaceous and a spectacular change in the fossil record) as the second.
It is unknown whether dinosaurs were warm or cold blooded. Evidence suggests the former, because some lived in cold climates year round, they grew at a similar rate to warm blooded animals, and their descendants, birds, are warm blooded.