(poús) 'foot') is any four-limbed vertebrate animal of the superclass Tetrapoda (/tɛˈtræpədə/). Tetrapods include all extant and extinct amphibians and...

osteolepiforms. The Tetrapodomorpha minus the crown group Tetrapoda are the stem Tetrapoda, a paraphyletic unit encompassing the fish to tetrapod transition...

The Stem Tetrapoda are a cladistically defined group, consisting of all animals more closely related to extant four-legged vertebrates than to their closest...

main body of the vertebra). The position of the Lepospondyli within the Tetrapoda is uncertain because the earliest lepospondyls were already highly specialized...

tetrapodomorphs. It is equivalent to a broad definition of the superclass Tetrapoda: under this broad definition, the term "tetrapod" applies to any animal...

fish, which include: Actinistia (coelacanths) Dipnomorpha (lungfish) Tetrapoda or limbed vertebrates Amphibians (lissamphibians, as well as the extinct...

modern amphibians, they are either included in the crown group Tetrapoda or the stem of Tetrapoda. Crown-group tetrapods are descendants of the most recent...

species) Subclass Sarcopterygii (lobe-finned fish: 8 species) Superclass Tetrapoda (four-limbed vertebrates; 35,100+ species) (The classification below follows...

460 Teleostomi Bony fish 420 Sarcopterygii Lobe finned fish Superclass Tetrapoda Tetrapods (animals with four limbs) 395 Amniota Amniotes (fully terrestrial...

familiar bony fish) Sarcopterygii Actinistia (coelacanths) Dipnoi (lungfish) Tetrapoda Amphibia (amphibians) Amniota Mammalia (mammals) Aves (birds) Reptilia...