Nove fytopaleontologicke sbery na halde Dolu Ignac v Markousovicich (karbon, vnitrosudetska panev)

Floral assemblage from the spoil pile of the Ignác mine contains about 20 species of lycophytes, sphenophytes, ferns, pteridosperms and cordaitaleans. Pteridosperms and sphenopsids are the most common, whereas lycophytes and ferns are rare. Isolated pinnules of the species Paripteris gigantea, foliaged twigs of Annularia radiata and fragments of leaves Cordaites sp. belong to the most common plant fragments. This assemblage is a typical assemblage of the roof-shale flora with a dominance of pteridosperms and relatively little representation of lycophytes. Similar plant assemblages are considered as non-peatforming. In years 1799-1899, mine waste from three mining works (Ignác heritage gallery, Ignác inclined shaft and Ignác machine shaft) was deposited on the spoil pile of the Ignác mine in Markoušovice. In the 2nd half of the 19th century, the Ignác machine shaft was connected in the underground with Vilemína, Pátrací and Antonín mining works. Mine waste from these mining works can occur also on the Ignác mine spoil pile. The coal seams No. 4, 5 and 6 of the U Buku Group of Coals, Prkenný Důl-Žďárky Member, Žacléř Formation (Bolsovian, Westphal B) were exploited here. The precise location of the historical palaeobotanical collections from the Markoušovice region is not known, therefore the fossils mentioned provide a valuable contribution to the knowledge of diversity of flora from the U Buku Group of Coals in the mining district of the Ignác mine.