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  1. Ptycholepis marshi Newberry : a chondrostean fish from the Newark group of Eastern North America /
    By: Schaeffer, Bobb, - Dunkle, David Hosbrook - McDonald, Nicholas G.
    Publication info: Chicago :Field Museum of Natural History,1975.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Northeastern States  Paleontology  Ptycholepis marshi  Triassic  Virginia  
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