1 The final age in the Devonian Period, preceded by the Frasnian, followed by the Hastarian Age (Carboniferous), and dated at 374.5–359.2 Ma (Int. Commission on Stratigraphy, 2004).
2 The name of the corresponding European stage, which is roughly contemporaneous with the upper Hervyan (Australia) and the Chautauquan (N. America).
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