Geologic Time Scale
Phanerozoic
Paleozoic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Silurian
438-410 Ma
General Info
The Silurian Period
"Definition of the Silurian Period"
Silurian Paleogeography
Fossils
Cooksonia
Eurypterus
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Updated: 5/1/98
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