Adaptation based on exploitation of wide range of natural resources, with no specialization. Model arose in time. Eastern and Western sequences differ. Period subdivided on basis of changes in projectile point style and subtle, but significant changes in adaptation. Afterthought Work in Great Basin has been almost exclusively ecological, with little consideration of historical factors such as migration, power relations, etc.
Linguistic data suggest they moved into area from So.
California less than 1000 years ago. Another possible influx of people may be seen in the Fremont Culture of AD 400 to 1300, the Great Basin s only horticulturalists.