Tijekom arheoloških istraživanja lokaliteta Petrovac 2006. i 2007. godine pronađena je manja količina rimske keramike u sekundarnom kontekstu: pronađena je zajedno s prapovijesnom keramikom izvan zidova kasnosrednjovjekovnog samostana, a unutar jednog sloja, te se datira od 1. do 4. stoljeća. Strukturne i tipološke osobine keramike s Petrovca vežu je najviše sa susjednom mikroregijom oko Topuskog, a šire s područjem Gornje Panonije. Osim panonskih proizvoda, pronađen je import iz Galije i Afrike. Lokalitet se nalazi na važnom geostrateškom položaju te ovi malobrojni nalazi donose važne i do sada nepoznate informacije.The archaeological investigations at the Petrovac site in 2006 and 2007 yielded a small assemblage of Roman pottery in a secondary context: it was found within a single layer in association with prehistoric pottery outside the walls of a late mediaeval monastery, and it is dated between the 1st and 4th century. As regards the structural and typological features of the pottery from Petrovac, the closest analogy exists with the neighbouring micro-region around Topusko, and further also with the area of Upper Pannonia. In addition to Pannonian products there were also imports from Gaul and Africa. The site occupies an important geostrategic position, and these scanty finds provide important and previously unknown information
