Except that "quadruped" is (AFAIK) phylogenetic: Tetrapoda.

> * tetrapod (/ˈtɛtrəˌpɒd/;[4] from Ancient Greek τετρα- (tetra-) 'four' and πούς (poús) 'foot') is any four-limbed vertebrate animal of the clade Tetrapoda (/tɛˈtræpədə/).*

Huh. I always thought it was a more generic term for any four-limbed animal. TIL, I guess!

	▲	IAmBroom 6 days ago \| parent [-]
		Honestly, I can't think of a non-tetrapod animal that is four-limbed. I mean, unless you cut one leg off a starfish.