Some Charophytes (Chlorophyta, Charales) from Alaska, USA

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Oligocarpia lindsaeoides (Ettingshausen) and its spores from the Westphalian of Central Bohemia (Czech Republic)

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Ordovician Tergomya and isostrophic Gastropoda (Mollusca) of Bohemia: Types and referred specimens in the collections of the National Museum, Prague, Czech Republic

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Tertiary flora and vegetation of the Hlavačov gravel and sand and the surroundings of Holedeč in the Most Basin (Czech Republic)

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