This paper describes dispersed cryptospores and trilete spores from tropical, temperate and cool climate belts within Přídolí and compares them with the land plant megafossil record. The palynology of earlier intervals in the Silurian are also reviewed. A common feature of the cryptospore and trilete spore records is that their number is surprisingly lowest in the tropical climatic belt and much higher in the temperate and especially in the cool latitude, and the highest number of cryptospore taxa occurring only in one belt is found in the cool belt while the highest number of trilete spore taxa that occurred only in one belt is recorded in the temperate belt. In general, based on the dispersed spore record, we can estimate that the plant assemblages of the tropical belt were dominated by rhyniophytes; trimerophytes probably prevailed over rhyniophytes in the temperate belt, and rhyniophytes again dominated within the cool belt.

Czech Geological Survey 118 21 Prague 1 Czech Republic

Eddy Lab Palaeopalynology Department of Geology University of Liège 4000 Liège Belgium

Faculty of Environmental Sciences Czech University of Life Sciences Prague 165 21 Praha 6 Czech Republic

Faculty of Science Charles University 128 43 Prague 2 Czech Republic

Laboratory of Palaeobiology and Palaeoecology Institute of Geology of the Academy of Sciences of the Czech Republic 165 00 Prague Czech Republic

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