石炭纪

Traditional form:

石炭紀

Pinyin (reading):

Shítànjì

Definitions:

• Carboniferous (geological period 354-292m years ago)

Characters:

• 石 - stone, rock, mineral
• 炭 - carbon, charcoal, coal
• 纪 - discipline, age; period, era; record, annal

Traditional characters:

• 石 - stone, rock, mineral
• 炭 - carbon, charcoal, coal
• 紀 - discipline, age; period, era; record, annal