Cygnus paloregonus (Cope, 1878) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Aves order Anseriformes family Anatidae genus Cygnus species Cygnus paloregonus Name Synonyms Cygnus matthewi (Shufeldt, 1913) Olor paleocygnus Lindgren, 1900 Olor paloregonus (Cope, 1878) Sthenelides paloregonus (Cope, 1878) Homonyms Cygnus paloregonus (Cope, 1878)