From Wikipedia, the free encyclopedia   (Redirected from
Tetrapoda) Jump to: navigation, search Temporal range: Early
Devonian - Holocene, 395–0Ma Representatives of the four classes
of extant tetrapods, (clockwise from upper left): a frog (an
amphibian), a hoatzin (a bird), a skink (a reptile), and a mouse
(a mammal) Scientific classification e Kingdom: Animalia Phylum:
Chordata Clade: Teleostomi Superclass: Tetrapoda authority
unknown, before 1912 (see talk page)  and see text  The
superclass Tetrapoda (Ancient Greek τετραπόδηs tetrapodēs,
"four-footed"), or the tetrapods, comprises the first four-
limbed vertebrates and their descendants, including the living
and extinct amphibians, reptiles, birds, and mammals. The
tetrapods evolved from the lobe-finned fishes about 395 million
years ago in the Devonian Period.[1] The specific aquatic
ancestors of the tetrapods, and the process by which land
colonization occurred, remain unclear, and are areas of active
research and debate among palaeontologists at present