分为四个不同的类群：苏铁类、银杏类、松柏类、买麻藤类植物以及一些化石类群。
There are four widely different living groups : the cycads, ginkgo, conifers, gnetophytes, and several fossil groups.
不同气候的地区适合不同种类树的森林，例如松柏类森林、宽叶落叶森林和宽叶热带森林。
Different climatic regions favor forests of different types of tree, for instance coniferous, broad-leaved deciduous, and broad-leaved tropical.
托克逊地区当时的植被是由银杏、苏铁类和松柏类等乔木，并伴有真蕨类等草本植物组成。
At that time the vegetation of the Toksun area consisted of such arbores as Ginkgo, Cycadopites and Coniferales, associated with herbs such as Filices.
吉林南部杉松岗盆地早侏罗世植物群主要由松柏类、银杏类、真蕨类和茨康类组成，迄今已发现22属37种。
More than 37 species of 22 genera of fossil plants are recognized by the authors from the Shansonggang Basin of southern Jilin, China, including mainly conifers, ginkgoales, ferns and czekanowskiales.
另一方面，落叶的银杏类和松柏类，以及裸子植物木化石中具有清楚的生长轮，又说明该地区的古气候存在着季节变化。
On the other hand, some deciduous gymnosperms including Ginkgoales, and the presence of growth rings in the fossil secondary wood, indicate seasonal changes.
另一方面，落叶的银杏类和松柏类，以及裸子植物木化石中具有清楚的生长轮，又说明该地区的古气候存在着季节变化。
On the other hand, some deciduous gymnosperms including Ginkgoales, and the presence of growth rings in the fossil secondary wood, indicate seasonal changes.
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