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  1. Ectoprocta (Bryozoa) from the Permian Kaibab Formation, Grand Canyon National Park, Arizona / Frank K. McKinney --.
    By: McKinney, Frank K.
    Publication info: Chicago, Ill. :Field Museum of Natural History,1983
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Arizona  Bryozoa, Fossil  Grand Canyon  Paleontology  Permian  
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