(The name of) a worldwide ocean, such as would have surrounded the supercontinent of Pangaea.
| 单词 | θ3257 |
| 释义 | the world > the earth > water > sea or ocean > [noun] > ocean, open sea, or deep sea > proto-ocean (2) Panthalassa1893 (The name of) a worldwide ocean, such as would have surrounded the supercontinent of Pangaea. proto-ocean1973 an ocean at an early stage of its development. |
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