Cygnus paloregonus

Cygnus paloregonus is a fossil swan. It is an ancestor of, and distantly allied to, the mute swan. It is known from the Pleistocene from Fossil Lake, Oregon, Froman's Ferry, Idaho, and from Arizona. It is referred to by Hildegarde Howard in Delacour's The Waterfowl of the World as "probably the mute type swan".^[7]

Cygnus paloregonus Temporal range: Middle Pleistocene
Left carpometacarpus from the hand of an extinct swan (Olor paloregonus = Cygnus paloregonus) from Oregon.[1] note on a a: pathological condition that consists in a more or less abundant exudation of spongy, osseous material that appeared upon the proximal part of the first or pollex metacarpal of the carpo-metacarpus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Anseriformes
Family:	Anatidae
Genus:	Cygnus
Species:	C. paloregonus
Binomial name
Cygnus paloregonus Cope, 1878[2]
Synonyms
Anser condoni Schufeldt 1892[3][4] Cygnus matthewi Schufeldt 1913[5] Olor matthewi Schufeldt 1913[5] Olor paloregonus (Cope)[3] Sthenelides paloregonus[6]

See also

• List of fossil bird genera
• Silver Lake (Oregon)