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  1. Note on some worm(?) burrows in rocks of the Chemung Group of New York. Bulletin of the AMNH ; v. 20, article 38.
    By: Whitfield, Robert Parr, 1828-1910.
    Publication info: New York : Published by order of the Trustees, American Museum of Natural History 1904
    Contributed by: American Museum of Natural History Library
    Subjects: Annelida, Fossil  Arenicolites chemungensis  Burrowing animals, Fossil  Devonian  New York (State)  Paleontology  Steuben County  Worms, Fossil  
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  2. Permo-Carboniferous fresh water burrows / Everett C. Olson -- and Kathryn Bolles --.
    By: Olson, Everett Claire, - Bolles, Kathryn,
    Publication info: Chicago :Field Museum of Natural History,1975.
    Contributed by: University Library, University of Illinois Urbana Champaign
    Subjects: Amphibians, Fossil  Burrowing animals, Fossil  Carboniferous  Lung-fishes, Fossil  Paleontology  Permian  Sedimentary structures  United States  
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