早奧陶世
Chinese
early; morning | the Ordovician | epoch | ||
---|---|---|---|---|
trad. (早奧陶世) | 早 | 奧陶 | 世 | |
simp. (早奥陶世) | 早 | 奥陶 | 世 |
Pronunciation
Proper noun
早奧陶世
- (geology) the Early Ordovician epoch (part of the Ordovician period, spanning from 485.4 to 470 million years ago)