- Tetrapods have four limbs along with fingers, toes, hips
- They are able to walk on land and breath air.
- Some examples include mammals, reptiles, amphibians,
- It is thought that they derived from a particular group
of bony fishes called the Osteichthyes.
- Others believe that the lungfish known as Dipnoi are
the sister group of tetrapods.
- This subject is still under heavy debate.