The Tetrapods reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Tetrapods

The group of vertebrates that includes amphibians, reptiles (including birds), and mammals.

So called, from tetra- (Greek) meaning "four" and -pod (Greek) meaning "foot," i.e. four feet or legs.

This is the "Tetrapods" reference article from the English Wikipedia. All text is available under the terms of the GNU Free Documentation License. See also our Disclaimer.