silurian period

基本解釋

In the Ordovician, Silurian Period, the Devonian, Carboniferous, the advent of low amphibians and ancient ancient reptiles.
在奧陶紀、志留紀、泥盆紀、石炭紀，相繼出現低等魚類、古兩棲類和古爬行類動物。
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The first fossil records of vascular plants—that is, land plants with tissue that carries food—appeared in the Silurian period.
最早的導管植物（即帶有運載食物組織的陸地植物）的化石記錄出現在志留紀時代。
But as the ecosystem recovered after the freeze, it expanded, with land plants becoming common over the course of the Silurian period.
但在冰封之后，隨著生態(tài)系統(tǒng)的復原，其范圍也隨之擴大，其結果是在Silurian期陸生植物變得更為普遍。