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  1. Eurypterids of the Devonian Holland Quarry shale of Ohio / Erik N. Kjellesvig-Waering --
    By: Kjellesvig-Waering, Erik N.
    Publication info: [Chicago]Chicago Natural History Museum,1961.
    Contributed by: University of Illinois Urbana Champaign
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  2. Pennsylvanian invertebrates of the Mazon Creek area, Illinois : Eurypterida / Erik N. Kjellesvig-Waering --
    By: Kjellesvig-Waering, Erik N. - Chicago Natural History Museum.
    Publication info: [Chicago] :Chicago Natural History Museum Press ,1963.
    Contributed by: University of Illinois Urbana Champaign
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  3. A revision of the families and genera of the Stylonuracea (Eurypterida) / Erik N. Kjellsvig-Waering --
    By: Kjellesvig-Waering, Erik N. - Chicago Natural History Museum.
    Publication info: [Chicago] :Chicago Natural History Museum,1966.
    Contributed by: University of Illinois Urbana Champaign
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  4. Scorpionida : the holotype of Mazonia woodiana Meek and Worthen, 1868 / Erik N. Kjellesvig-Waering --
    By: Kjellesvig-Waering, Erik N.
    Publication info: [Chicago] :Field Museum of Natural History ,1969.
    Contributed by: University of Illinois Urbana Champaign
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