Taxon Search
Organism
  Animalia
    Bilateria
     Protostomia
     Lophozoa
      Mollusca
            Gastropoda
                   [Orthogastropoda]
                    Stylommatophora
                            Megomphicidae
                                    Ammonitella
                                            Ammonitella yatesii
                                    Glyptostoma
                                            Glyptostoma gabrielense
                                            Glyptostoma newberryanum
                                    Megomphix
                                            Megomphix californicus
                                            Megomphix hemphilli
                                            Megomphix lutarius
                                    Polygyrella
                                            Polygyrella polygyrella
                                    Polygyroidea
                                            Polygyroidea harfordiana