class pteridospermopsida

Noun
  1. Extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies (synset 111625149)
    is a type of: class - (biology) a taxonomic group containing one or more orders
    member holonym: cycadofilicales, lyginopteridales, order cycadofilicales, order lyginopteridales - fossil gymnospermous trees or climbing plants from the Devonian: seed ferns
    belongs to: class gymnospermae, division gymnospermophyta, gymnospermae, gymnospermophyta - plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida)
    same as: pteridospermopsida

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