Central Taxonomic Thesaurus

Taxon Search
  Animalia
      Mollusca
            Bivalvia
              Autobranchia
                Heteroconchia
                 Palaeoheterodonta
                    Trigoniida
                          Myophorelloidea
                            Vaugoniidae
                              Quadratotrigoniinae
                                     Quadratotrigonia
                                             Quadratotrigonia nodosa
                                                   [Trigonia nodosa]