Though first believed to be Nabataean, later excavation estaablished the date theof the structure to the 4th century A.D. Therefore it is rather an imperial Roman temple.
Sources:
- http://www.ummeljimal.org/en/seasons.html
- Khaled Al-Bashaireh, Reconstructing the Chronology of the House XVII-XVIII Complex at Umm el-Jimal, East Jordan: Radiocarbon Dates of Organic Inclusions of Architectural Mortars,Radiocarbon, Vol 56, Nr 1, 2014, p 245–256
- http://www.ummeljimal.org/doc/UJ%20Education%20Manual%20V1%20Screen%20EN.pdf