cladoxylopsid
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English[edit]
Noun[edit]
cladoxylopsid (plural cladoxylopsids)
- Any of several plants, known only as fossils, that are thought to be ancestors of ferns and horsetails
Adjective[edit]
cladoxylopsid (not comparable)
- Of or pertaining to these plants, of the extinct class †Cladoxylopsida