 1986 p. 556).They also argued that some of the discarded traits might also be taken into consideration as strengthening the proposal, but they were not sufficient by themselves to act as foundation and other well-documented traits of a more ethnolinguistic character might not be considerable as traits that are linguistic but cultural.The following is a brief description of the linguistic traits considered by Campbell, Kaufman and Smith-Stark as defining the Mesoamerican language area.