1. Sinibaldi, Micaela. "The Crusader Period" in The Pottery of Jordan: A Manual, ed(s). Haron, Jehad, and Clark, Douglas R. Alexandria, VA and Amman, Jordan: The American Center of Research and Madaba Regional Archaeological Museum Project, 2022, 108-111 , Figure 3b, bottom.
2. Tonghini, Cristina, and Vanni Desideri, Andrea. "The Material Evidence from al-Wu`ayra: A Sample of Pottery" in Studies in the History and Archaeology of Jordan VII: Jordan by the Millenia, ed(s). 'Amr, Khairieh. Amman: Department of Antiquities of Jordan, 2001, 707-719

Tonghini and Vanni-Desideri (2001: 711) tentatively interpret this as a residual Byzantine period form, while noting that it seems to be fairly common in the 12th century assemblage. The dating and ware attribution favored here must also be considered tentative until final analysis and publication of the ceramics from al-Wu'ayra is completed.