| Northern cassowary | 
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| At Bali Bird Park | 
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| Scientific classification | 
| Domain: | Eukaryota | 
 
| Kingdom: | Animalia | 
 
| Phylum: | Chordata | 
 
| Class: | Aves | 
 
| Infraclass: | Palaeognathae | 
 
| Order: | Casuariiformes | 
 
| Family: | Casuariidae | 
 
| Genus: | Casuarius | 
| Species: | C. unappendiculatus | 
| Binomial name | 
| Casuarius unappendiculatus 
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| Distribution of the northern cassowary | 
| Synonyms | 
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 Casuarius doggetti Rothschild 1904
 Casuarius unappendiculatus doggetti (Rothschild 1904)
 Casuarius unappendiculatus hagenbecki (Rothschild 1904)
 Casuarius unappendiculatus jamrachi (Rothschild 1904)
 Casuarius unappendiculatus mitratus Rothschild 1904
 Casuarius unappendiculatus multicolor Le Souef 1930
 Casuarius unappendiculatus suffusus Rothschild 1904
 Casuarius rothschildi Matschie 1901
 Casuarius unappendiculatus rothschildi (Matschie 1901)
 Casuarius philipi Rothschild 1898
 Casuarius unappendiculatus philipi (Rothschild 1898)
 Casuarius unappendiculatus unappendiculatus (Blyth 1860)
 Casuarius occipitalis Salvadori 1878
 Casuarius unappendiculatus occipitalis (Salvadori 1878)
 Casuarius unappendiculatus rufotinctus Rothschild 1900
 Casuarius unappendiculatus aurentiacus Rothschild 1899
 Casuarius kaupi Rosenberg 1861
 Casuarius laglaizei Oustalet 1893
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The northern cassowary (Casuarius unappendiculatus), also known as the one-wattled cassowary, single-wattled cassowary, or golden-necked cassowary, is a large, stocky flightless bird of northern New Guinea. It is one of the three living species of cassowary, alongside the dwarf cassowary and the southern cassowary. It is a member of the superorder Paleognathae.