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We found 9 dictionaries with English definitions that include the word pteridospermopsida: Click on the first link on a line below to go directly to a page where "pteridospermopsida" is defined. General (9 matching dictionaries) Pteridospermopsida: Vocabulary.com [home, info] pteridospermopsida: Dictionary.com [home, info] Pteridospermopsida: UltraLingua English Dictionary [home, info] Pteridospermopsida: Rhymezone [home, info] pteridospermopsida: Free Dictionary [home, info] pteridospermopsida: Mnemonic Dictionary [home, info] pteridospermopsida: WordNet 1.7 Vocabulary Helper [home, info] Pteridospermopsida: LookWAYup Translating Dictionary/Thesaurus [home, info] Pteridospermopsida: Dictionary/thesaurus [home, info]

Quick definitions from WordNet (Pteridospermopsida) ▸ noun:  extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies