元古代

Yuángǔdài
Proterozoic (geological era 2500-540m years ago)

CEDICT

Alternative name for 元古宙 (Yuángǔ Zhòu).

Wiktionary

Entry Composition

1 元古 yuángǔ primeval past
2 代 dài
  1. to be a substitute for; to act on behalf of; to replace; to substitute
  2. generation; dynasty; age; period; (historical) era; (geological) eon

Containing this entry

古元古代 Gǔyuángǔ Dài