鮮せん新しん世せい

noun

Pliocene epoch

Geological epoch from about 5.3 to 2.6 million years ago. Used in scientific and educational contexts.

• 鮮せん新しん世せいには、現げん在ざいの大たい陸りくの配はい置ちがほぼ完かん成せいしていた。

  By the Pliocene epoch, the present-day arrangement of continents was largely in place.