中奧陶世
Chinese
middle; center; within middle; center; within; among; in; while (doing sth); during; China; Chinese; hit (the mark) | the Ordovician | epoch | ||
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trad. (中奧陶世) | 中 | 奧陶 | 世 | |
simp. (中奥陶世) | 中 | 奥陶 | 世 |
Pronunciation
Proper noun
中奧陶世
- (geology) the Middle Ordovician epoch (part of the Ordovician period, spanning from 470 to 458.4 million years ago)