- Subclass: Cyatheatae
- Subclass: Schizaeatae
- Subclass: Pteriditae
- Subclass: Polypoditae
The Pteridopsida is a class of plants in the Division Pteridophyta that includes the "modern" ferns. The Pteridopsida is sub-divided into four subclasses to reflect likely clades. These classes (and their included orders) are:
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Subclass: Cyatheatae
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Subclass: Schizaeatae
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Subclass: Pteriditae
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Subclass: Polypoditae
Last updated: 05-24-2005 11:38:56