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(geology) Of a geologic period within the Paleozoic era; comprises the Llandovery, Wenlock, Ludlow and Pridoli epochs from about 439 to 409 million years ago.

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Silurian

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Silurian

/saɪˈlʊəɹ.iː.ən/

adj

The Silurian period was characterized by a warm climate and diverse marine life.

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In some places, however, quartz reefs, payably auriferous while in Silurian rock, have been followed down to subjacent granite, and have there been found to thin out and become unprofitable […]

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(archaeology) Of or related to the Silures, a pre-Roman British tribe.

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Silurian

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Silurian

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