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The Cretaceous-Tertiary extinction event, is the name given to the die-off of the dinosaurs and other species that took place some 65.5 million years ago. For many years, paleontologists believed this event was caused by climate and geological changes that interrupted the dinosaurs' food supply.
Answer:
Dinosaurs lived on Earth 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). At the end of the Cretaceous an extinction event caused the death of most dinosaur species. Only birds, which evolved from theropod dinosaurs during the Jurassic period, survived until the present day.
Around 65 million years ago, at the end of the Cretaceous period.
On the order of 130 million years - if you don't include the extra 65 million that their direct descendants (birds) have been around.
At the end of the Cretaceous Period, around 65 million years ago.
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A sentence with word extinct?
Dinosaurs are now extinct. There are many species of birds that are extinct.
Is all dinosaurs exstint?
Yes, all dinosaurs are extinct. They all went extinct millions of years ago. The exact cause of why they all went extinct is debated by scientist and anthropologist.
Were dinosaurs extinct in the 19th century?
Dinosaurs became extinct millions of years ago. Dinosaurs died off long before humans came into existence.
Where have the gigantic dinosaurs gone?
They all died millions of years ago and are now extinct.
When did the dinosaur's become extinct?
Non avian dinosaurs became extinct 65.5 million years ago, at the end of the Cretaceous. However, birds are considered dinosaurs. Because birds still exist, dinosaurs are not completely extinct.
Use Must Have Been in a sentence?
There must have been an extremely good reason for all of the dinosaurs to have suddenly become extinct about sixty-five millions years ago.
Did dinosaurs hunt and eat humans?
No, because all dinosaurs except birds went extinct millions of years before humans existed.
What period did dinosaurs become extinct?
around 6.5 billion years ago
Where can a live dinosaur be bought?
You cannot buy living dinosaurs. Dinosaurs died out, as in, went extinct millions of years ago...before man kind.
Did dinosaurs become extinct AD or BC?
Dinosaurs went extinct before the beginning of the Common Era, so they became extinct in BC. The most widely accepted theory is that dinosaurs became extinct around 65 million years ago due to a catastrophic event, likely a massive asteroid impact.
Were real dinosours used in the movie Jurassic Park?
No, on account of the fact that dinosaurs have been extinct for millions of years.
How long was the time of the dinosarus?
Dinosaurs first appeared about 230 millions years ago and they went extinct about 65 million years ago. Therefore the time of the dinosaurs was about 165 million years.
