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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
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Is it true that the first dinosaurs 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.
When was the first dinosaur?
Dinosaurs appeared, probably with Eosaurus, in the mid Triassic period
Did the first shark appear after the dinosaurs became instinct?
No no no the first shark appeared in the jurassic period.
Were there dinosaurs in the Permian Period?
Yes. Non-avian dinosaurs first appeared in the Triassic period and were around until the end of the Cretaceous period. Birds, which are now classified as dinosaurs, appeared in the late Jurassic and live through the Cretaceous period as well.
Which period gave rise to the climax of dinosaurs and ammonoids?
Dinosaurs and ammonoids appeared in the Triassic period.
Were there snakes in dinosuar times?
Yes. Snakes first appeared in the Cretaceous period, the third and last period of the age of the dinosaurs.
Which geologic period gave rise to the climax of dinosaurs and ammonoids?
Dinosaurs and ammonoids appeared in the Triassic period.
What period were dinosaurs from?
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.
Who appeared in fossils first dinosaurs or mammals?
Dinosaurs first appeared shortly before mammals did.
Did the mammals live before or after the dinosaurs?
The first mammals appeared in the Triassic Period of the Mesozoic Era, when dinosaurs had already been present for at least 9 million years.
When did the first dinosaurs and mammals evolve?
The first dinosaurs AND the first mammals both appeared in the Triassic period From the Mesozoic era.
Where there mammals during the dinosaur age?
Yes. The first mammals appeared only about ten million years after the first dinosaurs in the Triassic period.
