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seed plants

seed plants The group that comprises the gymnosperms and angiosperms, plants distinguished by their production of seeds rather than spores. They arose in the Devonian from pteridophyte forebears, probably of a heterosporous character (i.e. bearing microspores and megaspores (see SPORE) on the same plant). These early seed plants were gymnosperms. Angiosperms are not certainly represented in the fossil record until the early Cretaceous.

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"seed plants." A Dictionary of Earth Sciences. . Encyclopedia.com. 21 Aug. 2017 <http://www.encyclopedia.com>.

"seed plants." A Dictionary of Earth Sciences. . Encyclopedia.com. (August 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/seed-plants

"seed plants." A Dictionary of Earth Sciences. . Retrieved August 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/seed-plants

seed plants

seed plants The group that comprises the gymnosperms and angiosperms, plants distinguished by their production of seeds rather than spores. They arose in the Devonian from pteridophyte forebears, probably of a heterosporous character. These early seed plants were gymnosperms. Angiosperms are not certainly represented in the fossil record until the early Cretaceous.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"seed plants." A Dictionary of Plant Sciences. . Encyclopedia.com. 21 Aug. 2017 <http://www.encyclopedia.com>.

"seed plants." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 21, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/seed-plants-0

"seed plants." A Dictionary of Plant Sciences. . Retrieved August 21, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/seed-plants-0