HyperDic: pteridospermopsida

English > 1 sense of the word Pteridospermopsida:
NOUNplantPteridospermopsida, class Pteridospermopsidaextinct gymnosperms most of Carboniferous to Jurassic
English > Pteridospermopsida: 1 sense > noun 1, plant
MeaningExtinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies.
Synonymclass Pteridospermopsida
Member ofGymnospermae, class Gymnospermae, Gymnospermophyta, division Gymnospermophytaplants having naked seeds not enclosed in an ovary
MembersCycadofilicales, order Cycadofilicales, Lyginopteridales, order Lyginopteridalesfossil gymnospermous trees or climbing plants from the Devonian
Broaderclass(biology) a taxonomic group containing one or more orders

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