Basilica

The Episcopal Basilica was a three-nave church with narthex. It was constructed in the fourth century and completed in the fifth century.

See:

1. Kyriakos Fragoulis, Aristotelis Mentzos, Dimitris Minasidis: Pottery from the Cemetery Basilica in the Early Byzantine City of Dion, LRCW 4 Late Roman Coarse Wares, Cooking Wares and Amphorae in the Mediterranean, Archaeology and Αrchaeometry, vol. Ι [BAR International Series 2616 (I)], Oxford 2014,  p. 297-304.