Ordovician
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English[edit]
Etymology[edit]
Named by Charles Lapworth in 1879 after the Celtic tribe of the Ordovices.
Adjective[edit]
Ordovician (comparative more Ordovician, superlative most Ordovician)
- (geology) Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago.
Proper noun[edit]
Ordovician
- (geology) The Ordovician period.
Translations[edit]
Ordovician period
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