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Reptiles evolved from a group of reptiliomorph amphibians in the Carboniferous period. Mammals evolved from a groupof synapsidreptiles in the Jurassic period.

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Are animals related to birds?

Birds are more closely related to reptiles than they are to mammals. Birds, reptiles, and mammals all belong to a group of vertebrates called amniotes, which split off from amphibians. Amniotes split into two groups soon after they evolved: true reptiles and synapsids. Mammals are the only living synapsids today. Dinosaurs branched off from the reptiles and birds then evolved from the dinosaurs.


What do you call a scientists who studies snakes?

Ophiology is the study of snakes whereas Herpetology is the study of snakes and many other reptiles


Are mammals born or hatched?

Mammala are animals.Most mammals give birth to live young, while most other animals lay eggs, such as reptiles and fish (some of which are also live-bearers), amphibians and birds.There are three species of egg-laying mammals, known as monotremes. This small group is made up of the platypus, the short-beaked echidna and the long-beaked echidna.


Give three physical characteristics of the ocean that affect where marine organisms can live?

Temperature, pressure and dissolved oxygen.


Why is the Cenozoic era is called the age of mammals?

The Cenozoic Era (65 million years ago to now) is known as the age of the mammals because this is the period where mammals came to dominate most environments on Earth. Although true mammals evolved in the late Triassic Period about 200 million years ago but where generally thought to be small and most certainly overshadowed by Reptiles such as Dinosaurs. When the Dinosaurs and most other large reptiles died out 65 million years ago, mammals started to become more dominant filling the ecological niches that where filled by large reptiles. Likewise Angiosperms (flowering plants) also shared similar fortunes. Many environments. There was a marked shift from Gymnosperms such as ferns and cycads to flowering plants.

Related Questions

Which came first fish or amphibians or reptiles?

Fish, and then amphibians, and then reptiles, and then mammals


In what category would amphibians reptiles and mammals be placed?

Amphibians , reptiles , mammals along with birds are included in Tetrapod Vertebrates .


Who were the ampbhibians ancestor befor dinosaurs?

Reptiles evolved from labyrinthodont amphibians around 315 million years ago. Hence all amniotes (reptiles, birds, and mammals) descend from the labyrinthodonts.


Are sharks amphibians mammals or reptiles?

Sharks are not amphibians, mammals, or reptiles. They are a type of fish known as cartilaginous fish, as their skeletons are made of cartilage instead of bone.


Are amphibians and reptiles mammmals?

No they are not mammals. Amphibians and Reptiles are other classes of animals at the same level as the mammals. Mammals have hair, are warm blooded and give birth to live young. Amphibians and reptiles reproduce using eggs.


Is a rhinoceros a reptiles or a amphibians?

Now That Is Just Ridiculous. Everyone Knows That Rhinos Are Mammals. Not Reptiles And Amphibians. So It Is Neither Of Them. They Are Mammals.


What has the most in common birds fish amphibians reptiles and mammals?

reptiles and amphibians have the most in common


Are chimpanzees mammals birdsi nsects reptiles or amphibians?

They are mammals.


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.


What shows the order in which vertebrates evolved?

1:fish 2: amphibians 3: reptiles 4: birds 5: mammals


Do frogs descend from reptiles?

No. Frogs are amphibians, a completely different thing.


Are lambs amphibians or reptiles?

Lambs are mammals.