Algae Calcifolium in the Lower Carboniferous deposits of the Lublin Upland

Abstract

Two species of the algal genus Calcifolium have been recorded in the Lower Carboniferous carbonates in boreholes in the Lublin Upland, eastern Poland. Acme zone of one of the species, Calcifolium okense Shvetzov & Birina, is recognized for indicative of the deposits of Late Vis¾an age.