三迭纪

Traditional form:

三迭紀

Pinyin (reading):

Sāndiéjì

Definitions:

• Triassic (geological period 250-205m years ago)
• also written 三疊紀／三叠纪

Characters:

• 三 - three
• 迭 - repeatedly, frequently
• 纪 - discipline, age; period, era; record, annal

Traditional characters:

• 三 - three
• 迭 - repeatedly, frequently
• 紀 - discipline, age; period, era; record, annal