Used attributively and absol. to designate a group of sub-stages of the upper Silurian in New York State and adjacent areas, characterized by…
| 单词 | θ5457 |
| 释义 | the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic > Silurian > specific (1) Salina1863 Used attributively and absol. to designate a group of sub-stages of the upper Silurian in New York State and adjacent areas, characterized by… |
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