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单词 Emsian
释义
Emsian

Geology and Earth Sciences
  • 1. An age in the Early Devonian epoch preceded by the Praghian, followed by the Eifelian, and dated at 407–397.5 Ma ago (Int. Commission on Stratigraphy, 2004).

    2. The name of the corresponding European stage, which is roughly contemporaneous with the lower Cunninghamian (Australia) and part of the Onesquethawian (N. America).


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