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)'s an extinct species known from fossil bones of Early or Late Pliocene age. Molecular studies have shown the genus… (More on Aptenodytes)