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progymnosperm

/ˌprəʊ.dʒɪmˈnəʊ.spɜːm/

1 entry

noun

/ˌprəʊ.dʒɪmˈnəʊ.spɜːm/C2formalscientific
  • ruВымершая предковая группа растений, от которой, как полагают, произошли современные голосеменные.

An extinct ancestral group of plants from which modern gymnosperms are believed to have evolved.

  1. Ancestral plant groupC2formalscientific

    An extinct group of plants that are considered the ancestors of modern gymnosperms, combining features of ferns and seed plants.

    ruПрогимносперм

    • Progymnosperms first appeared in the Devonian period.
    • Fossil evidence suggests progymnosperms had both fern-like leaves and woody stems.
    • Scientists study progymnosperms to understand the evolution of seed plants.