Family division William F. Shipley listed three Wintuan languages in his encyclopedic overview of California Indian languages. More recently,
Marianne Mithun split Southern Wintuan into a Patwin language and a Southern Patwin language, resulting in the following classification. •
Wintuan • Northern Wintuan •
Wintu (a.k.a. Wintu proper, Northern Wintu) •
Nomlaki (a.k.a. Noamlakee, Central Wintu) • Southern Wintuan •
Patwin (a.k.a. Patween) •
Southern Patwin Wintu became extinct with the death of the last fluent speaker in 2003. , Nomlaki has at least one partial speaker. Patwin became extinct in 2018. Southern Patwin, once spoken by the
Suisun local tribe just northeast of San Francisco Bay, became
extinct in the early 20th century and is thus poorly known. Wintu proper is the best documented of the four Wintuan languages. Pitkin estimated that the Wintuan languages were about as close to each other as the
Romance languages. They may have diverged from a common tongue only 2,000 years ago. A comparative study including a reconstruction of Proto-Wintuan phonology, morphology and lexicon was undertaken by Shepherd.
Possible relations to external language families The Wintuan family is usually considered to be a member of the hypothetical
Penutian language phylum and was one of the five branches of the original
California kernel of Penutian proposed by
Roland B. Dixon and
Alfred L. Kroeber. However, recent studies suggest that the Wintuans independently entered
California about 1,500 years ago from an earlier location somewhere in
Oregon. The Wintuan pronominal system closely resembles that of
Klamath, while there are numerous lexical resemblances between Northern Wintuan and
Alsea that appear to be loans. ==References==