Fire salamander (Amphibia), saltwater crocodile (Reptilia), southern cassowary (Aves), black-and-rufous giant elephant shrew (Mammalia), ocean sunfish (Osteichthyes) Euteleostomi (Eu-teleostomi[a], where Eu- comes from Greek εὖ 'well, good'[b] or Euteleostomes, also known as "bony vertebrates"[c]) is a successful clade that includes more than 90% of the living species of vertebrates.

Lungs have been retained in dipnoi (lungfish), and many tetrapods (birds, mammals, reptiles, and some amphibians).

[5][6][7] In ichthyology the difference between Euteleostomi and Osteichthyes is that the former presents a cladistic view, i.e. that the terrestrial tetrapods evolved from lobe-finned fish (Sarcopterygii).

Until recently, the view of most ichthyologists has been that Osteichthyes were paraphyletic and include only bony fishes.

Coelacanths Lungfish Lissamphibia Mammals Squamates Turtles Birds Crocodiles Polypteriformes Acipenseriformes Teleostei Amiiformes Lepisosteiformes Subnotes