Central Taxonomic Thesaurus

Taxon Search
  Animalia
      Mollusca
            Bivalvia
              Autobranchia
                Heteroconchia
                 Palaeoheterodonta
                    Trigoniida
                          Megatrigonioidea
                            Pterotrigoniidae
                                     Praescabrotrigonia
                                             Praescabrotrigonia clavigera
                                                   [Trigonia clavigera]
                                             Praescabrotrigonia emoryi
                                                   [Trigonia emoryi]