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单词 class Pteridospermopsida
释义 Noun: class Pteridospermopsida
  1. Extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
    - Pteridospermopsida

Type of: class

Part of: class Gymnospermae, division Gymnospermophyta, Gymnospermae, Gymnospermophyta

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