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The "first" dinosaurs began to develop about 200 million years ago. Most dinosaur types - in fact, almost all large life forms on Earth, INCLUDING all of the dinosaurs - became extinct fairly suddenly about 65 million years ago.
The extinction of the dinosaurs coincides with the impact of a fairly large asteroid or comet on the Earth.
However, some smaller dinosaurs, or their modern descendents, remain, and you may have eaten one at dinner last evening or breakfast this morning. We believe that most species of birds, including chickens, are descendents of the age or reptiles. Other large reptiles such as crocodiles, alligators, and the fearsome Komodo Dragon seem to be relatively unchanged since then.
What else can I help you with?
Is the Jurassic period a geologic time that followed the mass extinction of dinosaurs?
No. The Jurassic was in the middle of the dinosaurs' reign on Earth. The time period after the extinction of the dinosaurs is referred to as the Paleogene or the Tertiary.
During what time period were dinosaurs at their peak?
the best time of dinosaurs was the jurassic period where big sauropods ruled the earth ,late in the cretaceous period some species of dinosaurs were in decline before the hit of the meteorite that killed all dinosaurs
Did dinosaurs have their own earth?
No, there were mice, beavers and insects during that time period.
Did dogs live during the dinosaurs?
Dogs did not live during the time of the dinosaurs. There were no known mammals on Earth during that period.
Dinosaurs first appeared in what period?
Dinosaurs first appeared in the tertiary stages of the Earth. Tertiary was when the dinosaurs ruled the earth. Then there was jurassic and then creteacious
When triceratops was on earth what was the period time?
Triceratops existed between 68 and 65.5 million years ago. That was at the very end of the Cretaceous time period. The Cretaceous period was the last period of the Mesozoic, or Age of Dinosaurs. This means that Triceratops were one of the very last dinosaurs to exist, and were wiped out by the K-T extinction event that wiped out all of the world's dinosaurs.
What is an fact about the cretaceous period?
This was the period in which the dinosaurs were killed by and astroid that struck earth
What period do dinosaurs disappeared?
They disappeared in cretatucous Period . The last dinosaur in earth is barchiosaurus
What is pre historic period?
The prehistoric era is the time when dinosaurs ruled the earth. Prehistoric also refers to time before time and history started to be recorded.
How did humans discover what dinosaurs lived in the cretaceous time period?
they found the bones and fossils of the dinosaurs
What was the last period that dinosaurs lived on earth?
The last non avian dinosaurs lived up until the end of the Cretaceous period, specifically the Maastrichtian stage.However research in the past 20 years has show that birds are in fact dinosaurs that survive to this day.
What were the beginning events for the mesozoic time period?
dinosaurs
