TERM: Description of glossary term.
tetrapod
Context: Taxonomy.
Any of the many vertebrate animals that have four limbs, including snakes because they originally had four legs.
Reference
Barlow, George W. 2002. "The Cichlid Fishes (Nature's Grand Experiment in Evolution)". Perseus Publishing. 352. ISBN: 9780738203768 (crc03927) (abstract)