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Coal-ball peats and miospore floras were sampled quantitatively in profiles from the upper Middle Pennsylvanian Springfield Coal of the Illinois Basin. Coal profiles for miospore analysis were sampled at 13 sites, forming two transects across the Galatia paleochannel. Miospore assemblages near paleochannels differ from those near the coal margin. Near the Galatia paleochannel, four species of tree-fern spores (Laevigatosporites globosus, L. minimus, Punctatosporites minutus, Thymospora pseudothiessenii) share dominance throughout the profile, and Lycospora is subdominant. In profiles near the coal margin, T. pseudothiessenii dominates the lower three-fourths of the seam, and Laevigatosporites globosus dominates the upper one-fourth of the...

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