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Gedinnian

Gedinnian

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Gedinnian
1. The earliest age in the Devonian Period, preceded by the Silurian, followed by the Siegenian, and dated at 408–401 Ma.

2. The name of the corresponding European stage, which is roughly contemporaneous with the Crudinian (Australia) and the lower/middle Helderbergian (N. America). The boundary (also the Silurian—Devonian boundary) stratotype section is at Klonk, near Prague.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

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