Word.ws English Dictionary

zygopterid

zygopterid noun: a member of the Zygopterideae, an extinct family of ferns within order Osmundales having three-dimensional fronds with pinnae in four ranks and a rachis that is radially symmetrical in cross section.

Noun

zygopterid (plural zygopterids)

  1. A member of the Zygopterideae, an extinct family of ferns within order Osmundales having three-dimensional fronds with pinnae in four ranks and a rachis that is radially symmetrical in cross section.
    • As in the zygopterids, the fronds of the coenopterids were […]1992, Peter Robert Bell, Green Plants: Their Origin and Diversity, page 196
    • Phillips and Galtier (2005) also suggested that the ancestral form of the zygopterids was arborescent, based on the fact that the earliest forms (clepsydroid types) are arborescent.2009, Edith L. Taylor, Thomas N. Taylor, Michael Krings, Paleobotany: The Biology and Evolution of Fossil Plants, page 417

Forms of zygopterid

pluralzygopterids

Questions about zygopterid

What does zygopterid mean?
Zygopterid means a member of the Zygopterideae, an extinct family of ferns within order Osmundales having three-dimensional fronds with pinnae in four ranks and a rachis that is radially symmetrical in cross section.
What part of speech is zygopterid?
Zygopterid is a noun.
What is the plural of zygopterid?
The plural of zygopterid is zygopterids.

Words near zygopterid in the dictionary

  1. zygopods
  2. zygopophyses
  3. zygopophysis
  4. zygopteran
  5. zygopterans
  6. zygopterid
  7. zygopterids
  8. zygopteron
  9. zygopterous
  10. zygose
  11. zygoses

Source and license

Adapted from Wiktionary: zygopterid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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