Underfamilie	Gruppe	Sprog	Stammer
Nordlig Caddoisk	Pawnee-Kitsai	Pawnee Arikara Kitsai	pawnee arikara kitsai
	Wichita	Wichita	wichita
Sydlig Caddoisk	Caddo	Caddo	caddo

Kilder: Carl Waldman: Atlas of the North American Indian. Ethnologue Language Family Index.