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Sphenopsida
(redirected from sphenopsids)

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ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.Sphenopsida - horsetails and related forms
class Equisetatae, class Sphenopsida, Equisetatae
class - (biology) a taxonomic group containing one or more orders
division Pteridophyta, Pteridophyta - containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
Equisetales, order Equisetales - lower tracheophytes in existence since the Devonian
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Associated with these tracks in an impressive plant compression flora, which includes abundant remains of cycads, cycadeoids, and to a lesser extent, sphenopsids and filicopsids.
Triassic plant fossils from the Pekin formation, North Carolina by Buxton, Essie / Bulletin of the South Carolina Academy of Science
 
 
 
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