Ordovician Period

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Ordovician paleogeography

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Ordovician Period: Related Content

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Ordovician paleogeography

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Topics

Hirnantian Age fossil Ordovician radiation Ordovician-Silurian extinction Taconic orogeny Platystrophia Lituites Didymograptus Agnostus Diplograptus Silurian Period Devonian Period Cambrian Period Permian Period Carboniferous Period

Key People

Charles Lapworth

British geologist

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