Sarcopterygii

Sarcopterygii is traditionally the class of lobe-finned fishes, consisting of lungfish and coelacanths. Some taxonomists include the subclass Tetrapoda, which in turns consists of all the four-limbed vertebrates, such as reptiles.

This level of taxonomy is in flux however; the membership of Sarcopterygii is likely to change, and it may even be discontinued as a classification.