The baptistery located to the west of the "Petra Church" is a tree-room complex. In the centre is a cross-shaped baptismal font under a four-columned canopy.
Sources:
- Patricia Maynor Bikai, "The Churches of Byzantine Petra". Near Eastern Archaeology. 65 (4): 2002, 271–27 -https://www.jstor.org/stable/3210859