pteridospermopsida   (TTS Sound)

The pteridospermopsida has 1 Senses.

• class pteridospermopsida, pteridospermopsida
• extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
• ジュラ紀から石炭紀にほとんど絶滅した裸子植物：ソテツシダとally