Flysch is the most common remnant of the Senonian, particularly in the western Vardar Zone (up to three kilometers of alternating conglomerates, sandstones, arkose, marl, limestone and rudist fossils—shifting more toward siltstone in the east). Along the Radika River and Drim River in western North Macedonia, flysch, a carbonaceous sandbar limestone and olistolith limestone blocks outcrop. Cretaceous intrusive bodies include small granite bodies along the Pelagon fault zone, dating to 118 million years ago.