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  1. A monograph of the British Eocene flora.
    By: Gardner, John Starkie, - Ettingshausen, Constantin, Freiherr von, - Palaeontographical Society (Great Britain)
    Publication info: London,Printed for the Palæontographical society,1879-86.
    Holding Institution: Smithsonian Libraries
    Subjects: England  Eocene  Ferns, Fossil  Gymnosperms, Fossil  Paleobotany  
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  2. Note on a fern associated with Platephemera antiqua, Scudder
    By: Dawson, J. W. (John William), Sir,
    Publication info: S.l. :s.n.,1870?
    Holding Institution: Canadiana.org (archive.org)
    Subjects: Ferns, Fossil  Paleobotany  
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  3. Pennsylvanian tree fern compressions Caulopteris, Megaphyton, and Artisophyton gen. nov. in Illinois /
    By: Pfefferkorn, Hermann W. - Illinois State Geological Survey. - Illinois. Dept. of Registration and Education.
    Publication info: Urbana :Illinois State Geological Survey,1976.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Bomen (biologie)  Ferns, Fossil  Illinois  Paleobotany  Pennsylvanian  Varens  
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  4. Some fern-like fructifications and their spores from the Mazon Creek compression flora of Illinois (Pennsylvanian)
    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  
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