HyperDicEnglishSILUR ... Silurian period

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Related WikiPedia: Silurian period
English 1 sense of the expression Silurian period:
NOUNtimeSilurian period, Silurianfrom 425 million to 405 million years ago
EnglishSilurian period: 1 sense noun 1, time
MeaningFrom 425 million to 405 million years ago; first air-breathing animals.
SynonymSilurian
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
Spanishsiluriano, silúrico
Catalansilurià

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