Hierarchy classification:

1. top of the aat hierarchies
2. Styles and Periods Facet
3. Styles and Periods (hierarchy name)
4. [styles, periods, and cultures by region]
5. Early Western World
6. Near Eastern (Early Western World)
7. Mesopotamian (culture or style)
8. prehistoric Mesopotamian periods
9. prehistoric Southern Mesopotamian periods
10. Ubaid

Anotations

Scope note:

Refers to the phase in the Ubaid period in southern Mesopotamia from about 5000 to 4500 BCE. The phase is characterized by monocrhrome pottery with simple geometric designs and increased connections with areas outside of southern Mesopotamia.