“Penutian languages: Hypothetical superfamily of North American Indian languages that unites a number of languages and language families mainly of the far western United States and Canada. The Penutian hypothesis was proposed by Roland B. Dixon and Alfred B. Kroeber in 1913 and refined by Edward Sapir in 1921. Like the Hokan hypothesis (see Hokan Languages), it attempted to reduce the number of unrelated language families in one of the world’s most linguistically diverse areas. At its core was a group of languages spoken along California’s central coast and in the Central Valley, including Ohlone (Costanoan), Miwok, Wintuan, Maidu, and Yokuts. Sapir added Oregon Penutian (spoken along the lower Columbia River), Plateau Penutian (languages of Plateau Indian peoples), Tsimshian (spoken in western British Columbia), and Mexican Penutian (spoken in southern Mexico). Aside from the Mexican group, all the languages today are either extinct or spoken exclusively by older adults. Though the hypothesis remains unproven, at least some languages of the group are probably related to each other.”
Excerpted from: Stevens, Mark A., Ed. Merriam-Webster’s Collegiate Encyclopedia. Springfield, Massachusetts: Merriam-Webster, 2000.
Mark's Text Terminal 