Upper Carboniferous pebbles are known from Miocene conglomerates (Szászvár Formation) in the Mecsek Mts. Some pebbles may contain floral elements. Fine-grained siltstone is the most common fossiliferous rock. There are known leaf and stem fragments and some silicified wood-trunk fragments. These floral elements show Namurian to late Westphalian ages, but primarily the Westphalian B and C. The floral elements could be related to the Polish Carboniferous flora, particularly that of Silesia.