Some Charophytes (Chlorophyta, Charales) from Alaska, USA Anders Langangen 2001 | volume 57 | issue 3-4 | pages 51–56 PDF
Oligocarpia lindsaeoides (Ettingshausen) and its spores from the Westphalian of Central Bohemia (Czech Republic) Josef Pšenička , Jiří Bek 2001 | volume 57 | issue 3-4 | pages 57–68 PDF
Ordovician Tergomya and isostrophic Gastropoda (Mollusca) of Bohemia: Types and referred specimens in the collections of the National Museum, Prague, Czech Republic Radvan Horný 2001 | volume 57 | issue 3-4 | pages 69–102 PDF
Tertiary flora and vegetation of the Hlavačov gravel and sand and the surroundings of Holedeč in the Most Basin (Czech Republic) Vasilis Teodoridis 2001 | volume 57 | issue 3-4 | pages 103–140 PDF
