noun
Pliocene epoch
Geological epoch from about 5.3 to 2.6 million years ago. Used in scientific and educational contexts.
鮮新世には、現在の大陸の配置がほぼ完成していた。
By the Pliocene epoch, the present-day arrangement of continents was largely in place.
From 鮮 (fresh, vivid) + 新 (new) + 世 (epoch, world), a calque of the English 'Pliocene' (from Greek pleion 'more' + kainos 'new').