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A reptile is in no way a mammal. A reptile is a vertebrate, but it is completely different from a mammal. It doesn't have hair, it is an ectotherm, and it doesn't feed its young with milk. A mammal has hair at some point in its life, is an endotherm, and feeds it's young with milk.

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13y ago
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8y ago

They are reptiles because they are cold-blooded, lay eggs and have scales.
Turtles are reptiles because they are cold blooded as are all reptiles and they do not have hair or produces milk for their young like mammals do.

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12y ago

they were cold-blooded reptiles, though emerging evidence suggests they were warm blooded.

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12y ago

Dinosaurs are technically classed as reptiles. They were not related to mammals, but were more closely related to birds.

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12y ago

No, we are mammals.

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8y ago

Humans are mammals

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3y ago

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Q: Are the dinosaurs mammals or reptiles?
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Continue Learning about Natural Sciences

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.


Are turkeys dinosaurs?

No. Turtle are from a branch of reptiles completely separate from dinosaurs.


Were all dinosaurs reptiles?

No way! There were thousands of species of reptiles that lived both during, before, and after the dinosaurs lived on earth. There were the synapsid reptiles, as well as the anapsid reptiles, which were mostly gone when the dinosaurs arrived. There were also many diapsid reptiles that lived during the time the dinosaurs did. Such species include deinosuchus, dimetrodon, gorgonops, Quetzalcoatlus, and rutiodon. Dinosaurs were not reptiles themelves. They evolved from reptiles, many had warm blood even feathers,


What era did the first dinosaur appear in?

The first dinosaurs lived in the beginning of the Mesozoic Era (or the Age of Reptiles). Birds were amazingly discovered to be dinosaurs so dinosaurs were also alive in the Cenozoic (that's our time-the Age of Mammals) to today.


Did early mammals cause the extinction of dinosaurs?

No. By the time the dinosaurs went extinct mammals still played a relatively minor role ecologically. It is generally accepted that an asteroid or comet struck the earth, causing ecosystems to collapse worldwide and resulting the extinction of many groups of animals including the dinosaurs.

Related questions

Are humans small dinosaurs?

no dinosaurs were reptiles and we are mammals.


Did mammals evolve from dinosaurs?

No. Mammals evolved from synapsid reptiles, a group not closely related to dinosaurs. Dinosaurs are more closely related to modern reptiles and birds than they are to mammals.


Do you believe that dinosaurs were ever mammals?

No. Dinosaurs are currently considered reptiles and are not related to mammals.


Did mammals or reptiles develop first?

reptiles because of the dinosaurs


Were dinosaurs mammals or amphibians?

Neither...They were reptiles. dinosaurs were nether amphibians or mammals they were all reptiles, though they are more closely related to birds.


Are dinosaurs the oldest mammals?

No. Dinosaurs were not mammals. They were more closely related to birds and modern reptiles than they were to mammals.


Why aren't dinosaurs mammals?

Dinosaurs and mammals evolved from two separate branches of reptiles. Mammals evolved from synapisid reptiles (all of which are not extinct) while dinosaurs along with the modern branches of reptiles evolved from sauropsids. So dinosaurs are more closely related to modern reptiles than they are to mammals. In more recent years scientist tend to agree that birds are in fact a surviving branch of dinosaurs.


Are dinosaurs related to mammals?

No, dinosaurs are more related to reptiles and birds.


Are people mammals or reptiles?

There are more mammals because of the dinosaurs.


Is there a possibility humans evolved from dinosaurs?

Nope, humans are mammals. Mammals emerged shortly after the dinosaurs did, evolving from a very distant group of reptiles.


Did dinosaurs have sweat glands?

Only mammals have sweat glands. Dinosaurs were reptiles, so they did not have sweat glands.


How many dinsaurus are mammals?

No dinosaurs were mammals, but reptiles. "dinosaur" means "terrible lizard." Though there may be a link between dinosaurs and modern birds.