University of Illinois at Urbana-Champaign
Prairie Research Institute
Illinois Natural History Survey

INHS Collections Data

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  Animalia
    Bilateria
     Protostomia
     Lophozoa
      Mollusca
            Bivalvia
                   [Pelecypoda]
              Pteriomorphia
                    Arcoida
                            Parallelodontidae
                                     Parallelodon
                                             Parallelodon rugosus