Description of a dozen new genera (Cheggatellina, Emsiella, Flexitubulla, Kamaenina, Koninckoporella, Masloviporella, Paraumbellina, Pseudoepiphytella, Sphaerinviella, Vintonella, Wapitella) associated with about forty new species. The microflora, including a few Microproblematica, are derived from many basins on a worldwide scale. The samples range from the Devonian, Carboniferous and Permian.
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