The relationships between the Penutian languages of the Pacific Coast are less certain and less well understood than in some of the other Amerindian
language families. Some linguists consider the Penutian languages to constitute one rather divergent language family; others consider them a
group of four to seven language families making up a broader linguistic stock; others consider them several distinct language families that do
not have a relationship with each other at all; and some even think the Penutian languages should be grouped together with the Uto-Aztecan and/or the
Mayan languages.
Languages that are usually discussed under this rubric include: