大量的古生代植物聚集在水域边缘，并逐渐蔓延到地球的各个角落。
The communities of Paleozoic plants congregated at the water's edge and began to colonize the Earth's surface.
我的教授研究古生代的植物群。
中生代，广东植物区系成分发生了很大的变化，裸子植物大量繁盛，但总体上是在本区晚古生代华夏植物区系的基础上演化而来的。
In Mesozoic, Guangdong flora had a big change, the gymnosperm was prosperous, but it was evolved from the late Paleozoic Cathaysian flora as a whole.
分布于欧洲和加拿大东部的古生代简单的二岐 式植物，包含最古老的脉管陆地植物。
Paleozoic simple dichotomously branched plants of Europe and eastern Canada including the oldest known vascular land plants.
分布于欧洲和加拿大东部的古生代简单的二岐 式植物，包含最古老的脉管陆地植物。
Paleozoic simple dichotomously branched plants of Europe and eastern Canada including the oldest known vascular land plants.
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