The Southern Permian Basin in Central Europe extended from the area of the present-day North Sea towards the territory of Lithuania and Latvia. The Zechstein rocks from the eastern margin of the basin outcrop in three places: the Sudetes and the Holy Cross Mts. (Poland), and at the Lithuanian / Latvian border. Abundant fauna containing foraminifers, ostracods, molluscs, brachiopods, bryozoans, echinoderms, and vertebrates was documented from this area; some new taxa have been found in the present study. The palaeoecological analysis of the fauna assemblages was carried out in order to characterise the sedimentation environment.