Geology. Originally: the name given to the system or series of Palæozoic rocks lying immediately below the Devonian or Old Red Sandstone; of or…
| 单词 | θ5336 |
| 释义 | the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Silurian (9) Silurian1835 Geology. Originally: the name given to the system or series of Palæozoic rocks lying immediately below the Devonian or Old Red Sandstone; of or… Subcategories:— specific (8) |
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