Extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies. Synonym: Pteridospermopsida.
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Words linked to "Class Pteridospermopsida" : division Gymnospermophyta, Cycadofilicales, class, Gymnospermae, Pteridospermopsida, order Cycadofilicales, class Gymnospermae, Lyginopteridales, order Lyginopteridales, Gymnospermophyta |
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