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Under construction
Taxon: Genus †Spirifer Sowerby, 1816 (invertebrate)
Cladification by:

Animalia Linnaeus, 1758 - animals
   Enterozoa
     Cœlomata
       Mollusca Linnaeus, 1758 - molluscs
         Lipocephala
           Spirobranchia
             Testicardines Bronn, 1862
               Spirifer Sowerby, 1816

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Last updated: 21 Sep 2025