From Wikipedia, the free encyclopedia

Biological taxa that went extinct during the Silurian Period, the geologic time between 443.8 and 419.2 million years ago, during the Paleozoic Era.

From Wikipedia, the free encyclopedia

Biological taxa that went extinct during the Silurian Period, the geologic time between 443.8 and 419.2 million years ago, during the Paleozoic Era.


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