Ludlovian palaeocope ostracodes of the Baltic region and their correlative value

On the basis of new data more precisely defined complexes of palaeocope ostracodes for all biostratigraphical subdivisions of the Ludlovian of the Baltic are presented. 31 genera and the 68 most widespread species are considered. Their geographical and stratigraphical distribution in connection with the correlation of the Ludlovian deposits of different parts of the Baltic region, and also of Gotland, is determined.