15128363-n 'from 500 million to 425 million years ago';
 
Chinese (simplified) 奥陶纪 时代 , 奥陶纪时代 , 奥陶纪
English Ordovician , Ordovician period
Indonesian Ordovisium , zaman ordovician
Japanese オルドビス紀
Malaysian Zaman Ordovisi
Definitions
Japanese
5億年前から4億2千5百万年前まで
コノドント、貝虫類、藻、および海草
English
from 500 million to 425 million years ago
conodonts and ostracods and algae and seaweeds
Relations
Type: period
Holonym–Part: paleozoic
Semantic Field: timen
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Maintainer: Francis Bond <bond@ieee.org>