HyperDicEnglishORDOVICIAN ... Ordovician period

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Related WikiPedia: Ordovician period
English 1 sense of the expression Ordovician period:
NOUNtimeOrdovician period, Ordovicianfrom 500 million to 425 million years ago
EnglishOrdovician period: 1 sense noun 1, time
MeaningFrom 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds.
SynonymOrdovician
Instance ofperiod, geological periodA unit of geological time during which a system of rocks formed
Part ofPaleozoic, Paleozoic eraFrom 544 million to about 230 million years ago
SpanishOrdoviciano, ordovícico
Catalanordovicià

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