Pteridospermopsida, n.
extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
<noun.plant>
Pteridospermopsida class Pteridospermopsida
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Word
extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
<noun.plant>
Pteridospermopsida class Pteridospermopsida