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Some fern-like fructifications and their spores from the Mazon Creek compression flora of Illinois (Pennsylvanian)

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By: Pfefferkorn, Hermann W. - Peppers, Russel A. (Russel Allen), - Phillips, Tom Lee,

Publication info: Urbana, Illinois State Geological Survey, 1971

Holding Institution: University Library, University of Illinois Urbana Champaign

Subjects: Bevruchting Ferns, Fossil Flora (biologie) Grundy County Illinois Paleobotany Pennsylvanian Plants, Fossil Varens Will County