Taxonomic Hierarchy 
      
        
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 |   | Kingdom | Animalia 
 – Animal, animaux, animals | 
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|   |    Phylum | Cnidaria Hatschek, 1888
 – cnidarians, coelenterates, cnidaires, coelentérés, água viva, anêmona, caravela, cnidario, coral, hidra | 
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|   |       Subphylum | Anthozoa 
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|   |          Class | Anthozoa Ehrenberg, 1834
 – corals, flower animals, sea anemones, anémones de mer, coraux, água viva, anêmona, antozoário, caravela, corais, gorgônia | 
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|   |             Subclass | Hexacorallia 
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|   |                Order | Actiniaria 
 – anemones, sea anemones, actinies, anémones | 
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|   |                   Suborder | Nyantheae Carlgren, 1899
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|   |                      Infraorder | Athenaria Carlgren, 1899
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|   |                         Family | Halcampoididae Appellöf, 1896
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|   |                            Genus | Siphonactinopsis Carlgren, 1921 | 
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          Direct Children: | 
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 |   |                               Species | 
Siphonactinopsis laevis Carlgren, 1921
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