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
            Cephalopoda
              Nautiloidea
                    Nautilida
                            Nautilidae
                                     Allonautilus
                                             Allonautilus perforatus
                                             Allonautilus scrobiculatus