Di Mesopotamia bagian Utara periode ini hanya berjalan antara sekitar 5300 dan 4300 SM.[3] Periode ini didahului oleh Periode Halaf dan Periode transisi Halaf-Ubaid kemudian digantikan oleh Periode Chalcolithic Akhir.
Catatan
↑Carter, Robert A. and Philip, Graham Beyond the Ubaid: Transformation and Integration in the Late Prehistoric Societies of the Middle East (Studies in Ancient Oriental Civilization, Number 63) The Oriental Institute of the University of Chicago (2010) ISBN978-1-885923-66-0 p.2, at http://oi.uchicago.edu/research/pubs/catalog/saoc/saoc63.htmlDiarsipkan 2013-11-15 di Wayback Machine.; "Radiometric data suggest that the whole Southern Mesopotamian Ubaid period, including Ubaid 0 and 5, is of immense duration, spanning nearly three millennia from about 6500 to 3800 B.C".
↑Hall, Henry R. and Woolley, C. Leonard. 1927. Al-'Ubaid. Ur Excavations 1. Oxford: Oxford University Press.