cladoxylopsid

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English[edit]

Noun[edit]

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Wikipedia

cladoxylopsid (plural cladoxylopsids)

  1. Any of several plants, known only as fossils, that are thought to be ancestors of ferns and horsetails

Adjective[edit]

cladoxylopsid (not comparable)

  1. Of or pertaining to these plants, of the extinct class †Cladoxylopsida