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In some classifications, a subdivision of the gymnosperms, comprising 4 orders, the oldest of which, the Cordaitales, appeared in the Carboniferous. They became extinct at the end of the Permian, but their place was taken by 2 other coniferopsid orders: the Ginkgoales (ginkgos) and Coniferales (conifers). These are now usually ranked as divisions, the Ginkgophyta and Coniferophyta.

Subjects: Plant Sciences and Forestry — Earth Sciences and Geography.

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