Picosa: The Elementary Southwestern Culture

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Abstract
Picosa is defined as a continuum of similar closely related preceramic cultures existing in the southwestern United States during the last three millennia before Christ. It is seen as representing the elementary period of the development of the Southwest as a discrete culture area and is believed to be the result of a cultural synthesis of uniform developments originating as early as 8000 B.C. Although similar to the Desert culture in a culture-typical sense, the Picosa is distinct in terms of detailed inventory and historic derivation. Its role as the progenitor of most of the ceramic period cultures of the Southwest is examined.