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''Bucephala'' is a genus of ducks found in the Northern Hemisphere. The bufflehead was formerly separated in its own genus ''Charitonetta'', while the goldeneyes proper were mistakenly placed in ''Clangula'' (as ''Clangula americana''), the genus of the long-tailed duck, which at that time was placed in ''Harelda''.〔Report of the National conference on utilization of forest products. New national museum, Washington, DC, November 19 and 20, 1924. Issue 13. US Govt. print. off. 1925.〕 The three living species are: * Common goldeneye (''Bucephala clangula'') * Barrow's goldeneye (''Bucephala islandica'') * Bufflehead (''Bucephala albeola'') Known fossil taxa are: * ''Bucephala cereti'' (Sajóvölgyi Middle Miocene of Mátraszõlõs, Hungary - Late Pliocene of Chilhac, France) * ''Bucephala ossivalis'' (Late Miocene/Early Pliocene of Bone Valley, United States), which was very similar to the common goldeneye and may even have been a paleosubspecies or direct ancestor * ''Bucephala fossilis'' (Late Pliocene of California, United States) * ''Bucephala angustipes'' (Early Pleistocene of central Europe) * ''Bucephala'' sp. (Early Pleistocene of Dursunlu, Turkey: Louchart et al. 1998) ==References== *Louchart, Antoine; Mourer-Chauviré, Cécile; Guleç, Erksin; Howell, Francis Clark & White, Tim D. (1998). ''L'avifaune de Dursunlu, Turquie, Pléistocène inférieur: climat, environnement et biogéographie. C. R. Acad. Sci. Paris IIA'' 327(5):341-346. (with English abridged version ) (HTML abstract) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Goldeneye (duck)」の詳細全文を読む スポンサード リンク
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