Taxonomic Hierarchy 
      
        
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 |   | Kingdom | Animalia 
 – Animal, animaux, animals | 
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|   |    Subkingdom | Bilateria 
 – triploblasts | 
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|   |       Infrakingdom | Deuterostomia 
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|   |          Phylum | Chordata 
 – cordés, cordado, chordates | 
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|   |             Subphylum | Vertebrata 
 – vertebrado, vertébrés, vertebrates | 
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|   |                Infraphylum | Gnathostomata 
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|   |                   Superclass | Tetrapoda 
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|   |                      Class | Mammalia Linnaeus, 1758
 – mammifères, mamífero, mammals | 
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|   |                         Subclass | Theria Parker and Haswell, 1897
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|   |                            Infraclass | Eutheria Gill, 1872
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|   |                               Order | Cetacea Brisson, 1762
 – baleines, cétacés, dauphins, mammfères marins, marsouins, baleia, cetáceo, golfinho, cetaceans, whales, dolphins, marine mammals, porpoises | 
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|   |                                  Suborder | Odontoceti Flower, 1867
 – toothed whales | 
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|   |                                     Family | Phocoenidae Gray, 1825
 – porpoises | 
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|   |                                        Genus | Neophocaena Palmer, 1899
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|   |                                           Species | Neophocaena asiaeorientalis (Pilleri and Gihr, 1972)
 – narrow-ridged finless porpoise, Yangtse River Porpoise | 
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|   |                                              Subspecies | Neophocaena asiaeorientalis asiaeorientalis (Pilleri and Gihr, 1972) – Yangtze finless porpoise | 
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