Rhipidistia

The Rhipidistia are lobe-finned fish, and include the ancestors of the tetrapods. The Rhipidistia are a subgroup of Sarcopterygii which includes the lungfish (Dipnoi) and the tetrapodomorphs.

As cladistic understanding of the vertebrates has improved over the last few decades a monophyletic Rhipidistia is now understood to include the ancestor of the whole Tetrapoda. 

Taxonomy
Rhipidistia
Dipnomorpha
†Porolepiformes
†Powichthys
Dipnoi
Tetrapodomorpha
†Rhizodontiformes
Osteolepidida
Osteolepiformes
†Tristichopteridae
Elpistostegalia
†Panderichthys
Tetrapoda

References
palaeos.com page 
Taxonomicon page 

Category:Lobe-finned fish