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  1. Chronology and molluscan paleontology of two post-Woodfordian bogs in northeastern Illinois /
    By: Leonard, A. Byron
    Publication info: Urbana :Illinois State Geological Survey,1974.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Fossielen  Holocene  Illinois  Kane County  Livingston County  Moerasland  Mollusks, Fossil  Paleontology  Weekdieren  
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  2. An Early Pennsylvanian flora with megalopteris and noeggerathiales from west-central Illinois /
    By: Leary, Richard L. - Pfefferkorn, H. W., - Illinois State Museum.
    Publication info: Urbana :Illinois State Geological Survey,1977.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Flora (biologie)  Fossielen  Illinois  Megaloptera  Paleobotany  Pennsylvanian  
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  3. A fossil flower.
    By: Dahlgren, B. E.
    Publication info: Chicago:Field Museum of Natural History,1924.
    Contributed by: Field Museum Library
    Subjects: Bloemen  Cycadaceae, Fossil  Flowers  Fossielen  Fossils  Planten  Plants  
    BHL Collections: Field Museum Library
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  4. How old are fossils? / by Sharat K. Roy, Asst. Curator of Invertebrate Paleontology.
    By: Roy, Sharat Kumar, - Field Museum of Natural History.
    Publication info: Chicago :Field Museum Press,1927.
    Contributed by: Field Museum Library
    Subjects: Datering  Fossielen  Fossils  Paleontology  
    BHL Collections: Book of the Week Collection | Field Museum Library
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