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Devonian
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Key terms: silurian sea late period plants rock wenlock stages event appear strata biota lasting climate ordovician ocean food warm fossil extinction epoch wales coral england shallow llandovery devonian earliest cambrian eroded ludlow geology covered bristol evidence geologic northern boundary extensive sediments late silurian north america identified vascular plant middle silurian during this period Search external links cited by footnotes on Wikipedia page Silurian: |
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