|
The genus ''Aptenodytes'' (from the Ancient Greek ''a''/α 'without' ''pteno-''/πτηνο- "feather" or "wing" and ''dytes''/δυτης "diver") contains two extant species of penguins collectively known as "the great penguins".〔 ==Taxonomy== * King penguin, ''Aptenodytes patagonicus'' * Emperor penguin, ''Aptenodytes forsteri'' Ridgen's penguin (''Aptenodytes ridgeni'') is an extinct species known from fossil bones of Early or Late Pliocene age. Combined morphological and molecular data have shown the genus ''Aptenodytes'' to be basal to all other living penguins, that is, the genus split off from a branch which led to all other species. DNA evidence suggests this split occurred around 40 million years ago. This had been foreshadowed by an attempt to classify penguins by their behaviour, which also predicted the genus' basal nature. 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「Aptenodytes」の詳細全文を読む スポンサード リンク
|