Abstract
New, hitherto unpublished miospore information from the Middle and Upper Devonian of the Parnaiba Basin, northeastern and northcentral Brazil, has enabled refinement of the chitinozoan zonation recently proposed for that basin. To a large extent, Devonian miospore zones defined for the Amazonas Basin can be also recognized in the Parnaiba Basin and other Western Gondwanan basins. The miospore zones are discussed and compared to the coeval Southern Euramerican miospore zonation, the regional Petrobras palynozones, and to the chitinozoan zonation of the Parnaiba Basin, additional Western Gondwanan regions, and other parts of the world.
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