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The first mammals appeared in the Triassic Period of the Mesozoic Era, when dinosaurs had already been present for at least 9 million years.
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∙ 8y ago
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Who appeared in fossils first dinosaurs or mammals?
Dinosaurs first appeared shortly before mammals did.
Were mammals around before dinosaurs?
Yes.
Why have dinosaurs not changes since before the time of dinosaurs?
Dinosaurs are extinct, buddy. I don't know what planet you live on, but they've been gone for a long time. And they did evolve, they turned into birds and mammals. Robert, they likely did not evolve into mammals, the mammals were already there. Although, I will give you credit on birds, due to the Archaeopteryx.
Were there other mammals with dinosaurs?
There were mammals living alongside the dinosaurs, but the dinosaurs were not mammals.
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.
Where elephants here before dinosaurs?
Mammals did not evolve until dinosaurs were prolific when they did appear they were very small and very scarce when dinosaurs died out.
Did the Dimetrodon come before or with the dinosaurs?
Dimetrodon live in the Permian period, which was before the dinosaurs.
Did cave men live in dinosaurs?
No, cave men and dinosaurs did not coexist. Dinosaurs went extinct about 65 million years ago, while cave men, or early humans, appeared much later in history, around 2 million years ago. There is no evidence to suggest that they ever lived together.
Did mammals appear in the fossil record before dinosaurs or after?
Mammals actually first came into existence about 220 million years ago, which is about 155 million years before the dinosaurs went extinct, and only about 10 million years after they themselves first evolved. So mammals actually lived alongside the dinosaurs, though played a much smaller role.
Did cavemen live before dinosaurs or after dinosaurs?
The lived during the dinos.
What period is the age of the mammals?
Mammals first evolved during the Mesozoic, the age of dinosaurs. After the dinosaurs died out, the Cenozoic began and mammals diversified until they dominated the land. Currently, we still live in the Cenozoic, so, technically, the Cenozoic could be called "the age of mammals."
Who has lived longer on earth so far dinosaurs or mammals?
Mammals and dinosaurs started about the same time and mammals are still here, so ... Mammals! (Unless you count birds as dinosaurs, in which case it's a tie). One of the mysteries of evolution is why the dinosaurs came to dominate the mammals in the first place.
