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  1. New agnathous fishes from the Pennsylvanian of Illinois / David Bardack -- and Eugene S. Richardson, Jr. --
    By: Bardack, David. - Richardson, Eugene Stanley,
    Publication info: Chicago :Field Museum of Natural History,1977.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Gilpichthys greenei  Illinois  Kankakee County  Paleontology  Pennsylvanian  Pipiscius zangerli  Will County  
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