A progymnosperm was an extinct seedless vascular plant that is considered a potential ancestor to seed plants. This group marks an evolutionary transition in plant development.
Progymnosperms were ancient seedless vascular plants that are believed to be the ancestors of modern seed plants. They represent an important evolutionary link.
| Front | progymnosperm |
|---|---|
| Back | An extinct seedless vascular plant that may be ancestral to seed plants. |
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