古元古代

Chinese

		ancient; old	primeval past	era
simp. and trad. (古元古代)		古	元古	代

Pronunciation

• Mandarin

  (Pinyin): Gǔyuángǔ Dài

  (Zhuyin): ㄍㄨˇ ㄩㄢˊ ㄍㄨˇ ㄉㄞˋ

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• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin: Gǔyuángǔ Dài
    • Zhuyin: ㄍㄨˇ ㄩㄢˊ ㄍㄨˇ ㄉㄞˋ
    • Tongyong Pinyin: Gǔyuángǔ Dài
    • Wade–Giles: Ku³-yüan²-ku³ Tai⁴
    • Yale: Gǔ-ywán-gǔ Dài
    • Gwoyeu Romatzyh: Guuyuanguu Day
    • Palladius: Гуюаньгу Дай (Gujuanʹgu Daj)
    • Sinological IPA ^(key): /ku²¹⁴⁻²¹ ɥɛn³⁵ ku²¹⁴⁻²¹ taɪ̯⁵¹/

Proper noun

古元古代

1. (geology) the Paleoproterozoic era (part of the Proterozoic eon, spanning from 2.5 to 1.6 billion years ago)

See also

• 中元古代 (Zhōngyuángǔ Dài)
• 元古宙 (Yuángǔ Zhòu)