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单词 Serravallian
释义
Serravallian

Geology and Earth Sciences
  • A stage in the Middle Miocene epoch preceded by the Langhian, followed by the Tortonian, and dated at 13.65–11.608 Ma ago. It is roughly contemporaneous with the Helvetian (Europe), upper Luisian and lower Mohnian (California), Lillburnian (New Zealand), and Bairnsdalian (Australia). The stratotype is in the Scrivia Valley, Italy.


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