What was developed first amphibians or mammals?

Ielkattawy ∙

Lvl 1

∙ 15y ago

Updated: 8/18/2019

Amphibians. Amphibians evolved in the Devonian period, about 400 mya. Adelobasileus, thought to be the ancestor of all modern mammals, lived in the late Triassic, about 225 mya.

Wiki User

∙ 15y ago

What else can I help you with?

Which came first fish or amphibians or reptiles?

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

Are whale amphibians?

Whales are aquatic mammals, not amphibians.

Do salamander have hair?

no salamanders are amphibians mammals have hair, amphibians do not

Are bisons mammals or amphibians?

Bisons are mammals.

Are treefrogs mammals?

No, treefrogs are amphibians, not mammals.

Are red foxes amphibians or mammals?

They are mammals.

Are African Elephants mammals or amphibians?

Mammals.

What are the typical body coverings for amphibians and mammals?

Amphibians are naked while mammals possess hair on skin .

Are dolphins birds amphibians or mammals?

Dolphins are mammals.

Are tadpoles mammals?

no, there amphibians.

Are dinosaurs more closely related to amphibians or mammals?

Dinosaurs are more closely related to mammals. Both mammals and dinosaurs share a reptilian ancestor that they don't share with amphibians.

Do amphibians have highly developed brains?

Yes, amphibians have highly developed brains.